ở 1 loài thực vật, gen A: vàng, gen a: xanh gen B: trơn, gen b: nhăn Các gen trội hoàn toàn, mỗi gen nằm trên 1 NST khác nhau, không đột biến, không phụ thuộc vào môi trường. Theo lí thuyết, các phát biêu sau đúng hau sai. Giải thích. a. Không tỉnh phép lai thuận nghịch, có tối đa 45 phép lai có thể xảy ra ở loài trên. b. Chỉ có duy nhất một phép lai xảy ra trong trường hợp: cho lai giữa hai cơ thể P thu được F1 đồng loạt vàng trơn, tiếp tục cho F1 tự thụ phấn, 12 thu được 16 tổ hợp. c. Cho phép lai P: AaBb x Aabb thu được đời con F1. Xác suất lấy ngẫu nhiên 2 cây ở đời con trong đó có 1 cây dị hợp 2 cặp gen là 3/8.

Viết 1 đoạn văn trình bày cảm nhận của em về tình cảm của tác giả đối với dòng sông quê hương qua đoạn thơ sau :

Hôm nay tôi sống trong lòng Miền Bắc 

Sờ lên ngực nghe trái tim thầm nhắc 

Hai tiếng thiêng liêng , hai tiếng ''Miền Nam''

Tôi nhớ nguồn ánh năng mày vàng

Tôi quên sao đc sắc trời xanh biếc

Tôi nhớ cả những người không quen biết

EXCERCISES

Exercise 1. Transform the given word into the correct form to complete the sentence:

1.     We went on an __________ trip to the ancient ruins.                        (Explore)

2.     The __________ heritage of the city is fascinating.                          (Culture)

3.     She is an experienced __________ who has visited many countries. (Travel)

4.     After a long day of sightseeing, we needed some __________ time. (Relax)

5.     They are planning an __________ trip to the Amazon rainforest. (Adventure)

6.     The city is known for its __________ nightlife.                                (Vibrance)

7.     The nature __________ is home to many rare species.                     (Reserve)

8.     The __________  tourist spot was not as impressive as we expected. (Overrate)

9.     The __________ village was a perfect spot for photography.             (Picture)

10.   The __________ of the market made it a fun place to visit.                         (lively)

11.  The __________  attraction was crowded with visitors.                    (tour)

12.  They __________  through the dense forest using a map.                 (navigation)

13.  The __________ view from the top of the mountain was worth the hike. (breath)

Mark to indicate the word whose underlined part differs from the other three in.

Question 1: A. modern                      B. pollute                                C. produce                  D. congested

Question 2: A. locate                         B. overseas                              C. poster                     D. often

Question 3: A. centre                         B. camping                              C. cover                      D. couch

Question 4: A. safe                            B. gate                                     C. jam                         D. waste

Question 5: A. public                         B. jungle                                 C. construct                 D. commuter

Question 7: A. terrible                       B. attractive                             C. interesting              D. dangerous

Question 8: A. reliable                       B. comfortable                        C. convenient              D. amenities

Question 9: A. leftover                      B. livable                                 C. congestion              D. properly

Question 10: A. process                     B. metro                                  C. pricey                     D. advance

Question 1: The new ____ downtown is expected to be the largest in the city, offering various activities for all age groups.

Question 2: Every morning, during _, the streets are filled with cars, making it difficult to get to school on time.

Question 3: Living in a _____________ can be overwhelming due to the lack of green spaces.

Question 4: The government has invested heavily in _________to improve the quality of life for its residents.

Question 5: After hours of working at the _____________, the workers were exhausted and covered in dust.

Question 6: He decided to take the _____________ to avoid the _____________ on the main roads.

Question 7: Spending too much time in a polluted area often gives me _____________ and a sore throat.

E3:Complete the sentences using the words/phrases in the box.

Question 1: The new shopping mall is always _________with shoppers looking for the best deals on weekends.

Question 2: Despite being _____________, the city offers numerous job opportunities and a lively nightlife.

Question 3: Many people find the cost of living in big cities to be quite ________ compared to smaller towns.

Question 4: The public transportation system in our city is very _______, with buses and trains arriving on time.

Question 5: He chose to live in this neighborhood because it is known to be _____________.

Question 6: The downtown area is always _______, full of life and activity at all hours.

Question 7: They moved to the suburb because it is more _____________ and offers a better quality of life.

Question 8: The new apartment is very _____________ to his workplace, saving him a lot of commuting time.

Question 1: The city council has decided to ____a plan to improve public transportation and reduce traffic congestion.
Question 2:  If you ___________ a cold, make sure to rest and drink plenty of water.

Question 3:  On weekends, I usually ___________ my friends at the local café.

Question 4:  Despite the heavy traffic, he managed to _________ the city quite easily using public transport.

Question 5:  I was surprised to __________ that they had moved to another city without telling anyone.

Question 6: Parents often ___________ their children by working hard to provide for them.

Question 7: By ___________ using our cars, we can significantly decrease traffic congestion during rush hours.

Question 8:  My grandmother will _________ her jewelry to me when I'm older.

Question 1: The (tall) _____________ the building is, the (beautiful) _____________ the view is.

Question 2: The (long) _____________ the day is, the (tired) _____________ I feel.

Question 3: The (rich) _____________ the person is, the (much) _____________ they spend.

Question 4: The (fast) _____________ the car is, the (dangerous) _____________ it is to drive.

Question 5: The (young) _____________ you start saving, the (good) _____________ your future will be.

Question 6: The (difficult) _____________ the exam is, the (happy) _____________ I will have  pass it.

Question 7: The (high) _____________ the temperature is, the (bad) _____________ I feel.

Question 8: The (bright) _____________ the light is, the (easy) _____________ it is to see.

Question 9: The (strong) _____________ the wind is, the (cold) _____________ it feels.

Question 10: The (more) _____________ you practice, the (good) _____________ you become.

Question 11: The (close) __________ you live to work, the (less) _____________ time you spend commuting

Question 12: The (interesting) _____________ the movie is, the (much) _____________ I enjoy it.

Question 13: The (rainy) _____________ it is, the (wet) _____________ the roads become.

Question 14: The (delicious) _____________ the food is, the (much) _____________ I eat.

Question 15: The (heavy) _____________ the suitcase is, the (difficult) _____________ it is to carry.

Question 16: The (early) _____________ you arrive, the (good) _____________ your seat will be.

Question 17: The (warm) _____________ the weather is, the (many) _____________ people go to the beach.

Question 18: The (expensive) _____________ the gadget is, the (high) _____________ its quality is.

Question 19: The (friendly) _____________ the people are, the (enjoyable) _____________ the trip is.

Question 20: The (clean) _____________ the water is, the (safe) _____________ it is to drink.

Question 1: The city center is always __________ with people during rush hour.
            A. bustling                              B. special                                C. empty                     D. quiet
Question 2: She decided to __________ her spending on unnecessary items.
            A. come down with                 B. cut down on                        C. hang out with         D. get on with
Question 3: The office is located next to a ________ and noisy construction site, which makes it hard to focus.
            A. pricey                                 B. reliable                               C. dusty                      D. quiet
Question 4: The restaurant was quite __________, but the food was delicious.
            A. affordable                           B. pricey                                 C. interesting              D. reasonable

Question 5: After eating at that restaurant, he __________ food poisoning.
            A. handed down                     B. came down with                 C. ran out of                D. gave up

Question 6: During ________ hour, the traffic in the city is incredibly congested.
            A. rush                                    B. low                                     C. crowded                 D. liveable

Question 7: The area is known as a __________ because of all the tall buildings and lack of green spaces.
            A. public amenity         B. entertainment center          C. concrete jungle          D. construction site

Question 8: They are building a new apartment complex at the construction __________.
            A. metro                                  B. tram                                    C. underground           D. site

Question 9: The __________ area of the city is usually very lively and bustling.
            A. downtown                          B. hygiene                               C. rural                        D. underground

Question 10: The new __________ has various shops, restaurants, and a cinema.
            A. traffic jam                          B. entertainment centre           C. concrete jungle       D. construction site

Question 11: It is very easy to __________ in this city because of the excellent public transport system.
            A. carry out                             B. find out                               C. get around              D. come back

Question 12: Good __________ is essential to prevent illness.
            A. construction                       B. hygiene                               C. leftover                   D. downtown

Question 13: They __________ stuck in a traffic jam on their way to work yesterday morning.
            A. got                                      B. went                                    C. came                       D. took

Question 14: We need to __________ the number of cars on the road to reduce pollution.
            A. run out of                           B. cut down on                        C. get on with             D. take care of

Question 15: She __________ a cold after being out in the rain.
            A. went on with                      B. came down with                 C. ran out of                D. gave up

Question 16: During peak hours, the roads are extremely __________.
            A. itchy                                   B. open                                    C. congested               D. pricey

Question 17: Due to pollution, people can easily get __________ eyes in the city.
            A. itchy                                   B. narrow                                C. perfect                    D. clear

Question 18: Be careful with your belongings as __________ is common in crowded areas.
            A. pickpocketing                     B. crime-free                           C. safety                      D. security
Question 19: Taking the _________ can save a lot of time compared to driving in heavy traffic.
            A. taxi                                     B. private car                          C. underground           D. bus

Question 20: Wearing a mask while walking outside helps protect against _________.
            A. road dust                            B. underground system           C. congested road       D. itchy eyes

Question 21: The government is considering building more roads to ease _________.
            A. traffic light                                     B. traffic flow                         C. traffic safety           D. traffic congestion

Question 22: A new entertainment _________ is under construction and is expected to open next year.
            A. centre                                 B. business                              C. quality                    D. community

Question 23: They recently moved into a _________ apartment with all the latest amenities.
            A. crowded                             B. modern                               C. boring                     D. noisy
Question 24: The city council is working hard to make the neighborhood a __________ place for its residents.
            A. dangerous                           B. liveable                               C. silent                       D. expensive
Question 25: It's not always _________ on the metro, especially during peak hours when it gets crowded.
            A. noisy                                   B. careful                                C. safe                         D. dangerous
Question 26: There are more entertainment options available when you live in the downtown instead of the _______.
            A. suburbs                               B. centers                                C. amenities                D. sites

Question 27: Public transportation is a _________ option for getting around the city.
            A. peaceful                              B. bustling                               C. quiet                       D. convenient

Question 28: We decided to travel at night to _________ traffic jams on the main roads.
            A. avoid                                  B. transport                             C. widen                     D. complete

Question 29: We need to _________ action on creating more green spaces in the city.
            A. get                                      B. put                                      C. make                       D. take

Question 30: The new metro system is very __________ for daily commuters.
            A. inconvenient                       B. difficult                              C. convenient              D. unreliable

Question 31: The organization decided to __________ a project which turns food waste into energy.
            A. hand down                         B. carry out                             C. get around              D. look after

Question 32: It is important to throw rubbish away __________ to keep the environment clean.
            A. properly                              B. shortly                                C. narrowly                 D. especially

Question 33: The __________ in that neighborhood is a major concern for residents.
            A. low noise level                   B. high crime rate                   C. clean environment D. high safety level

Question 34: She had to cancel her plans for the weekend because she __________ the flu.
            A. came down with                 B. cut down on                        C. got on with             D. ran out of
Question 35: One of the best ways to relax is to _________ out with friends and watch a movie.
            A. get                                      B. hang                                    C. come                       D. make

Question 36: The city council decided to _________ a project to improve the public transportation system.
            A. get around                          B. carry out                             C. hand down             D. give up

Question 37: Planting more trees along busy roads can help ___________ noise pollution.
            A. get on with                         B. hang out with                     C. come down with     D. cut down on

Question 38: _______________ your shoes are, the longer you can walk without feeling tired.
            A. The comfortable                 B. The more comfortable        C. More comfortable D. Comfortable

Question 39: The _________ the movie, the more people want to watch it.
            A. more famous                      B. famouser                             C. famous                   D. more

Question 40: The __________ you study, the __________ you will understand the material.
            A. harder, more                       B. hard, much                         C. more hard, more     D. harder, most

Question 41: The __________ the weather gets, the __________ I want to stay indoors.
            A. more cold, less                   B. colder, more                       C. cold, more              D. more cold, more
Question 42: The __________ you exercise, the __________ you will feel.
            A. more, good                         B. more, better                        C. much, good            D. many, better
Question 43: The __________ you eat unhealthy food, the __________ your health becomes.
            A. more, worse                       B. more, bad                           C. many, worse           D. much, worse

Question 44: The __________ the movie is, the __________ I am to recommend it.
            A. better, more likely              B. good, more likely               C. best, likely              D. good, likely
Question 45: The __________ you save your money, the __________ you will have for the future.
            A. more, much                        B. much, more                        C. more, more             D. many, more