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Bạn sang môn Toán hỏi nha.Vì đây là câu dễ nên mình trả lời luôn cho
\(x^3+2x^2y-x-2y\)
\(=\left(x^3-x\right)+\left(2x^2y-2y\right)\)
\(=x\left(x^2-1\right)+2y\left(x^2-1\right)\)
\(=\left(x^2-1\right)\left(x+2y\right)\)
\(=\left(x-1\right)\left(x+1\right)\left(x+2y\right)\)
Chọn từ được th phát âm khácô đậm có các :
1/ A. so B.show C.who D.though
2/ A.waste B.wash C.wall D.walk
3/A.money B.love C.brother D.move
4/A.last B.taste C.fast D.task
5/A.coop B.door C.food D.boot
Choose the word that has main stress placed differently from the others:
1. a. generous b. suspicious c. constancy d. sympathy
2. a. acquaintance b. unselfish c. attraction d. humorous
3. a. loyalty b. success c. incapable d. sincere
4. a. carefully b. correctly c. seriously d. personally
5. a. excited b. interested c. confident d. memorable
1/How often does your mother watch TV?
2/What do you like best in the weekend meeting shows?
3How often did the new program finish?
4/What did we watch on TV last night?
5/Where did Tom put the remote control?
7/How often do they go to the E club?
8/Why does she miss a week's lesson?
9/How usually does that newsreader get to work?
10/How long did the game show last?
I. Which one has different pronounced.
1. A. chair B. stomach C. catch D. child
2. A. how B. hat C. hour D. house
3. A. ear B. sea C. pea D. tea
4. A. know B. knee C. knife D. kill
II. Choose the best answer to complete the following sentences.
1. Are you a stamp ............................ ?
A. collect B. collection C. collector D. collecting
2. Getting to the village is a very ....................... journey.
A. interesting B. interested C. interests D. interest
3. ............................. Tom was a poor student, he studied very well.
A. Although B. Despite C. In spite D. Because
4. What do you think about his .............................. of coins?
A. collector B. collection C. collect D. collective
5. My village is about 100 kilometers ................. the south of HCM city.
A. with B. at C. for D. to
6. The weather is nice. Shall we ....................... mountains this morning?
A. come B. travelC. go D. climb
7. We will go ..................... a picnic next week.
A. at B. in C. on D. to
8. There is a meeting ............................ 9:00 AM and 2:00 PM .
A. till B. at C. between D. on
III. Give the correct tense/ form of the verbs.
l. She (go).......goes....... jogging twice a week, but she (go)..........went.......... by bike. yesterday because she (feel)........felt........ sick.
2. She (drive).............has driven............... the same car since she (buy) ..........bought.............it. on the beach with us now.
3. I wish she (be).......were................ on the beach with us now.
IV. Rewrite the sentences with the words given.
1. "How often do you go to the English club? Ba asked Mai.
Ba asked Mai How often she went to the English club
2. She last wore that dress at her sister's wedding.
She hasn't worn that dress since her sister's wedding.
3. Although Tom was a poor student, he studied very well.
Despite his poverty, Tom studied very well.
4. My mother told me to go to school although I was sick.
In spite of my sickness, My mother told me to go to school
V. Read the text and then answer the questions below.
My village is about 50 kilometers from the city center. It is very beautiful and peaceful place and where people grow flowers and vegetables only it's very famous for its roses a picturesque scenery. The air is quite fresh: however, the smell of roses makes people feel cool. In spring. my village looks like a carpet with plenty of colors. Tourists c to visit it so often. Nowadays, with electricity, it doesn't take the villagers much time to water the roses. And even at night, people can walk along the path and enjoy the fresh smell of the flowers.
Questions
1. How far is it from the writer's village to the city center?
it is about 50 kilometers from the writer's village to the city center
2 What is it famous for?
it's very famous for its roses- a picturesque scenery
3. Do the people in the village grow rice?
no, they don't
4. Why don't people nowadays spend much time to water the roses?
because there is electricity now
VI. Give correct form of the words.
1. Mai was ...........amazed.............. to see the beautiful things in the shop windows. (AMAZE)
2. He had an accident although he drove............carelessly.............. . (CARE)
3. Now my sister sings more..............beautifully........... ( BEAUTY)