1. please remember  to post   this letter. ( post ) 

2. do you mind   travelling   such a long way to work every day ? ( travel )

3. he tried   to reach   the shelf but he wasn't tall enough. ( reach ) 

4. the driver stopped  saying   hello to her. ( say ) 

5. tourists are not allowed    to talk       in the Temple. ( talk ) 

6. the teacher doesn't allow to use   dictionaries in the final examination. ( use ) 

7. he tried to avoid    answering     my question.( answer ) 

8. Paula has given up   smoking       for many years.( smoke ) 

9. we decided to stay at home.( stay ) 

10. i don't advise anybody  to stay   in that hotel. ( stay ) 

11. my parents don't let me go    out alone. ( go ) 

12.this door needs to paint  blue. (paint)

13.try ( use )  to use   our product.

14. she never considers ( fly )   flying     overseas some time in the future.

15. i distinctly remember ( pay ) to pay  him. I gave him 10 dollars.

16. it had better ( be )   to be sure than sorry.

17. don't forget ( lock ) to lock the door before ( go ) going  to bed,Tom.

18. would you mind ( show ) showing  me how ( use ) to use this computer? 

19. she spent much money ( buy ) buying  foods and drinks 

20. most students enjoy ( go ) going camping  ( came ) 

Ko chắc nữa 

1.      When was she killed?                                   

         She was killed in 1999.

2.  How often do you go to the cinema?                                                                         ? 

        I go to the cinema twice a month 

3.                                                                           Where did they work ? 

      They worked in the suburb 

4.                                                                             Who did you go to Hanoi with? 

      I went to Hanoi with her boyfriend 

5.                                                                            

Who teaches you English? 

    Mr Phuc teaches me English 

6.                                                                             How long is this the room? 

    The room is 5 meters in length 

7.                                                                             How does he speak English?

    He speaks English fluently 

8.                                                                             When did you started to learn English? 

   We started to learn English 5 years ago 

9.                                                                              How many eggs does she have?

   She has a dozen of eggs 

10.                                                                            How far is it from your house to your school?

  It's about 2,5 km from my school to my house 

1.The toystore is to the left of the restaurant .                                                  right

- The toystore is to the rigth of the restaurant.

2.The hospital is behind the museum .                                                             front

- The hospital is in front of the museum.

3.There is a small garden in my school.                                                           has

- My school has a small garden.

4.David 's house isn't far from the station.                                                        near      

- David's house is near the station

1. If I see him. I (give) ___will give____ him a lift.
2. If Andy studies hard, he (pass) ___will pass____ his exam.
3. If he eats all that, he (be) ___will be____ ill.
4. If I find your passport, I (telephone) ___will telephone____ you at once.
5. If he washes my car. I (give) ___will give____ him $10.
6. If I (see) ___see____ John. I will tell him your message.
7. If he (read) ____reads___ in bad light, he will ruin his eyes.
8. If she (need) needs some money, she can borrow mine.
9. If he (be) ___is____ late, we will go without him.
10. If I (have) ____have___ free time tomorrow, I will go shopping.
11. If I had a lot of money, I (travel) ___would travel____ around the world.
12. If you had arrived ten minutes earlier, you (get) ___would have gotten____ a seat.
13. If you had been here last week, you (meet) ____would have meet___ my parents.
14. If I had a map, I (be) ___would be____ all right.
15. If she had known you were coming, she (bake) ____would have baked___ a cake.

Tìm x:

a. 2x(x - 1) - x(4 - x) = 0

\(< =>2x^2\) - 2x  - 4x + x^{2 = 0}

<=> 3x² - 6x = 0

<=> x² - 2x = 0 <=> x(x-2) = 0

<=> \(\left[\begin{array}{nghiempt}x=0\\x-2=0\end{array}\right.\) <=> \(\left[\begin{array}{nghiempt}x=0\\x=2\end{array}\right.\)

\(\left(x+1\right)^2=\frac{4}{9}\Rightarrow\left(x+1\right)^2=\left(+-\frac{2}{3}\right)\)

\(\Rightarrow x+1=\frac{2}{3}\) hoac \(x+1=-\frac{2}{3}\Rightarrow x=-\frac{1}{3}\) hoac \(x=-\frac{5}{3}\)

gửi qua mail kiểu j đấy