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16 tháng 9 2020

\(\left(x-2\right)\left(x-2\right)\left(2x+3\right)\)

\(=\left(x^2-4x+4\right)\left(2x+3\right)\)

\(=2x^3-8x^2+8x+3x^2-12x+12\)

\(=2x^3-5x^2-4x+12\)

22 tháng 9 2020

đây là TA cơ mà sao lại là toán 

1.When she was young, she ___ swim across this riverA.   Was able to  B.   Had better   C.   Would  D.   Should2.He ___ stop making personal calls at work, or he will lose his job.A.   Would rather  B.   Had better   C.   Could  D.   Will3.___ I clean the room before the guests arrive?A.   Shall   B.   Would  C.   Could   D.   Might4.___ I use your computer for a minute?A.   Might  B.   Could  C.   Must  D.   Would5.My brother ___ attend a university in the USA, but he isn’t sure yet.A.  ...
Đọc tiếp

1.When she was young, she ___ swim across this river

A.   Was able to  B.   Had better   C.   Would  D.   Should

2.He ___ stop making personal calls at work, or he will lose his job.

A.   Would rather  B.   Had better   C.   Could  D.   Will

3.___ I clean the room before the guests arrive?

A.   Shall   B.   Would  C.   Could   D.   Might

4.___ I use your computer for a minute?

A.   Might  B.   Could  C.   Must  D.   Would

5.My brother ___ attend a university in the USA, but he isn’t sure yet.

A.   Should  B.   Must  C.   Shall  D.   Can

6. I think the principal ___ give students more freedom in choosing the courses they want to study.

A.   Would  B.   Would like  C.   Might  D.   Ought to

7. You ___ ask for permission before going inside the room.

A.   Have got to  B.   Would  C.   Will  D.   Might

8. The exhibition is free for all students. We ___ pay any fee.

A.   Mustn’t  B.   Shouldn’t  C.   May not  D.   Don’t have to

9. Is that Tom over there? No, it ___ be him. He’s not that tall

A.   Shouldn’t  B.   Might not  C.   Can’t  D.   Won’t

10. They are doing very hard on their project. It ___ be very important to them.

A.   Should  B.   Could  C.   Must  D.   Would

3
15 tháng 9 2020

1.a    2.a  3.a 4.b 5.d 6.c  7.a  8.d  9.c  10.b

chọn cho mk nha

1.When she was young, she ___ swim across this river

A.   Was able to  B.   Had better   C.   Would  D.   Should

2.He ___ stop making personal calls at work, or he will lose his job.

A.   Would rather  B.   Had better   C.   Could  D.   Will

3.___ I clean the room before the guests arrive?

A.   Shall   B.   Would  C.   Could   D.   Might

4.___ I use your computer for a minute?

A.   Might  B.   Could  C.   Must  D.   Would

5.My brother ___ attend a university in the USA, but he isn’t sure yet.

A.   Should  B.   Must  C.   Shall  D.   Can

6. I think the principal ___ give students more freedom in choosing the courses they want to study.

A.   Would  B.   Would   C.   Might  D.   Ought to

7. You ___ ask for permission before going inside the room.

A.   Have got to  B.   Would  C.   Will  D.   Might

8. The exhibition is free for all students. We ___ pay any fee.

A.   Mustn’t  B.   Shouldn’t  C.   May not  D.   Don’t have to

9. Is that Tom over there? No, it ___ be him. He’s not that tall

A.   Shouldn’t  B.   Might not  C.   Can’t  D.   Won’t

10. They are doing very hard on their project. It ___ be very important to them.

A.   Should  B.   Could  C.   Must  D.   Would

* Em ms lớp 8 :vvv

read the following passage and choose the best answer for each blankMinh's hobby is singing . She ( 1 )..............singing very much . When her brother ( 2 ).................a karaoke set last month , Minh was so glad that she ( 3 )...........................every day after dinner . She likes to sing only English songs . In fact , she has already sung all the songs found ( 4 ) .....................the karaoke discs . Minh is singing in the karaoke ( 5 ).................organized by the RC...
Đọc tiếp

read the following passage and choose the best answer for each blank

Minh's hobby is singing . She ( 1 )..............singing very much . When her brother ( 2 ).................a karaoke set last month , Minh was so glad that she ( 3 )...........................every day after dinner . She likes to sing only English songs . In fact , she has already sung all the songs found ( 4 ) .....................the karaoke discs . Minh is singing in the karaoke ( 5 ).................organized by the RC Center this Saturday . Her family is going there to support her

1 A wants                                      B enjoys                                C thinks                                   D hates

2 A invented                                   B discovered                                 C bought                                  D made

3 A sings                                    B sang                                      C sung                                     D singing

4 A of                              B about                                      C under                                  D on

5 A competition                                           B battle                           C company                                           D institution

1
15 tháng 9 2020

Minh's hobby is singing. She (1) _____ singing very much. When her brother (2) _______ a karaoke set last month, Minh was so glad that she (3) _____ every day after dinner. She s to sing only English songs. In fact, she has already sung all the songs found (4) _____ the karaoke discs. Minh is singing in the karaoke (5) _____ organized by the RC Center this Saturday. Her family is going there to support her.

1.enjoys

2.bought

3.sang

4.on

5.competition

1. Một bài học tẻ nhạt khiến tôi cảm thấy buồn chán.

2.Cô gái xinh đẹp đang đạp xe.

3. 13 sinh viên đã vượt qua kỳ thi giữa kỳ

4. Anh ấy ngạc nhiên khi thấy Helen. Cô ấy đã nói với anh ấy rằng cô ấy sẽ đến Úc.

5. Tôi đã rất chán trong bài học toán học. Tôi gần như ngủ thiếp đi.

6. Cảm thấy mệt mỏi và chán nản, anh ấy đi ngủ.

7.Bạn đã xem bộ phim đó chưa? Nó thực sự đáng sợ.

8. Tôi không thể ăn cái này! No thật kinh tởm! Nó là gì?

9. Một bài học tẻ nhạt khiến tôi cảm thấy buồn chán.

Hok Tốt !!!!!!!!!!!!!!!!!!!

1. Một bài học nhàm chán khiến tôi cảm thấy buồn chán.

2.Cô gái xinh đẹp đang đạp xe.

3. 13 sinh viên đã vượt qua kỳ thi giữa kỳ

4. Anh ấy ngạc nhiên khi thấy Helen. Cô ấy đã nói với anh ấy rằng cô ấy sẽ đến Úc.

5. Tôi đã rất chán trong bài học toán học. Tôi gần như ngủ thiếp đi.

6. Cảm thấy mệt mỏi và chán nản, anh ấy đi ngủ.

7.Bạn đã xem bộ phim đó chưa? Nó thực sự đáng sợ.

8. Tôi không thể ăn cái này! No thật kinh tởm! Nó là gì?

15 tháng 9 2020

How dare you
How to do this homework
How you that
 

15 tháng 9 2020

-How old are you?

-How can we play football?

-How to do Math homework?

-How could it be?

-How not to hurt?

-How do i learn English?

-How you that?

///CHÚC HỌC TỐT///

15 tháng 9 2020

đáp án:1.d

             2.c

            3.c

hc tốt

14 tháng 9 2020

ai nhanh mk k và phải đúng nx , mk cần gấp lắm

14 tháng 9 2020

1.he(go) goes to school by bus everyday

2. they(not ) don't staying up late

3 how often do you(do) do morning excercise?

4.i often (visit) visit grandparents at weekend 

5.every morning she (take) takes her son to school

6.nam always (do) does home work  in the evening

7.mai usually (help) helps her mother at home

14 tháng 9 2020

i don't know

14 tháng 9 2020

Hello everyone. My name is Lan. I am a girl of thirteen . When I look at myself in the mirror I see a black  girl with short straight hair, black eyes. As to my appearance I’m rather tall and slim. I have never thought I’m a beautiful girl, I wish I were more beautiful day by day. I think that I’m even tempered, rather reserved, calm and self-effacing. But sometimes I can lose my calm and become either angry or sad.

I staying alone and occasionally I retreat into my shell. But at the same time I my friends, I to laugh and joke with them because i have got a sense of humour. It means I understand humour and appreciate it. It is very nice to meet all of you today.

III. Supply the correct tense of the verb in parentheses to complete each of the following sentences.  (1.5pts) 1. Her aunt always ………………..… the dishes right after meals.                                        (wash) 2. I’m afraid he can’t help you. He  …………….……...… a report now.                                 (write)  3. They ……………………...… basketball at 5 p.m. yesterday.                                          (play) 4. I got to the post...
Đọc tiếp

III. Supply the correct tense of the verb in parentheses to complete each of the following sentences.  (1.5pts)

 

1. Her aunt always ………………..… the dishes right after meals.                                        (wash)

2. I’m afraid he can’t help you. He  …………….……...… a report now.                                 (write)  

3. They ……………………...… basketball at 5 p.m. yesterday.                                          (play)

4. I got to the post office just before it closed and ……………………. the letter.                     (send)

5. My mother is so busy. I wish she …………….….… more free time to play with me.        (have)      

6. We ……..……..……..… each other since last summer.                                               (not / meet)

 

IV. Fill in each numbered blank with the proper word from the box. (1.5pts)

 performances         like       different     takes       for          from       

 

 

       

 

 

                                                                        TWO FESTIVALS

Glastonbury Festival is a rock and pop festival. It (1)__________ place every year in June on a farm in the south-west of Britain, and it lasts for three days. About 150,000 people come (2)________  all over the UK and Europe to hear the bands and singers on three enormous stages. But there isn’t only music - there are also comedy shows, plays and circus acts. In total there are 380 (3)__________.

WOMAD stands (4)____________ “World of Music, Arts and Dance”. Every year there are WOMAD festivals in several (5)___________ countries. You can hear many kinds of music at WOMAD festivals, for example, bands (6)____________  BaaBa Maal from Senegal and Chambao from Spain.

V. Read the passage and answer the following questions. (1.5pts)

            Barbara Morgan’s dream was to travel into space. One day, her wish came true. She was one of the seven astronauts on the Space Shuttle Endeavour, which took off into space from NASA’s Kennedy Space Station in Florida.

            Morgan taught at an elementary school in Boise from 1975-1998, with some time off for astronaut training. In 1985, she and Christa McAuliffe were chosen from 11,000 applicants to become part of the teacher-in-space program. They trained together for the mission. But then, tragedy happened. On January 28,1986, the Space Shuttle Challenger exploded. After the Challenger accident, Morgan continued to teach. In 1998, she was asked again to become an astronaut. She accepted the offer and in the end her dream came true.

1. What was Barbara Morgan’s dream? 

    ……………………………………………………………………………………………………………………

2. Where did the Space Shuttle Endeavour take off into space from?

    ……………………………………………………………………………………………………………………

3. Who were chosen to become part of the teacher-in-space program in 1985? 

    ……………………………………………………………………………………………………………………

4. When did the Space Shuttle Challenger explode?

    …………………………………………………………………………………………………………………….

5. What did Morgan do after the Challenger accident?

    …………………………………………………………………………………………………………………….

6. Did Morgan become an astronaut in the end? 

    …………………………………………………………………………………………………………………….

VI. Write a new sentence as similar as possible in meaning to the original sentence, using the word(s) given. (1.5pts)                                      

 1. Sam works very hard so he often gets good marks.

     ………………………………… because ……………………………….. .

2. I don’t know his new address. I can’t visit him.

    If …………………………………………………………………………….. . 

3. My sister spent two hours writing that essay yesterday.

    It ………………………………………………………………… yesterday.

4. We haven’t seen Tom since December, 2010.

    We ……………………………………………………… in December, 2010.

1
15 tháng 9 2020

issac newton