cíu tớ với, tớ cần gấp:(
1. When                  in international trade, letters of credit are very convenient.

A. using                             B. are used                     C. used                            D. they used

2.  The 26th  Annual Meeting of the Asia-Pacific Parliamentary Forum (APPF)                   in Hanoi, our beautiful and peaceful capital city, from January 18th to 21st, 2O18.

A. was held                       B. is held                        C. is being held               D. will be held

3. We were made                  hard when we were at school.

A. to study                        B. study                         C. studying                      D. studied

4. Her fiance is said                  from Harvard University five years ago.

A. having graduated         B. to have graduated      C. being graduated          D. to be graduated

5. Only one of our gifted students                  to participate in the final competition.

A. was choosing                B. chosen                       C. has been chosen          D. have been chosen

6. They cancelled all flights because of fog.

A. All flights were cancelled by them of fog.

B. All flights were because of fog were cancelled.

C. All flights were because of fog cancelled.

D. All flights were cancelled because of fog.

7. This building                  finished by the end of last year but there have been so many strikes that it isn't finished yet.

A. will have been                                                     B. should have been

C. was to have been                                                    D. may not have been

8. As a small boy, he was used to                  alone in the house for an hour or two.

A. being left                      B. leaving                       C. be left                         D. leave

9. DNA tests                  accepted in court eases.

A. are known                    B. were used                  C. have been                    D. will have

10. Ann hoped                  to join the private club. She could make important business contact here.

A. being invited                B. to invite                     C. to be invited                D. inviting

11.  Despite their normal cylindrical form, some of the documents                  on silk that were found at Mawangdui, an archaeological site in southeastern China, were folded into rectangles.

A. wrote                            B. written                       C. were written                D. be written

12. The boy                  by the teacher yesterday.

A. punished                       B. was punished             C. punish                         D. punishing

13. Robots will even                  everywhere in factories, schools, offices, hospitals, shops, and homes.

A. seen                              B. see                             C. saw                              D. be seen

14. We don't allow anyone to use their cell phones during the examination.

A. Nobody is allowed to use their cell phones during the examination.

B. Nobody is allowed using their cell phones during the examination.

C. Nobody isn't allowed to use their cell phones during the examination.

D. Nobody isn't allowed using their cell phones during the examination.

15. Everyone likes                  when they have got some success.

A. to be congratulated                                             B. being congratulated

C. to be congratulating                                                D. to congratulate

16. This is the latest news from earthquake site. Two- thirds of the city                  in a fire.

A. has been destroyed                                             B. have been destroyed

C. were destroyed                                                       D. was destroyed

17. References                  in the examination room.

A. not are used                  B. is not used                 C. didn't used                  D. are not used

18. Her watch needs                 

A. repairing                       B. to be repaired             C. repaired                       D. repairing/to be repaired

19. There's somebody behind us. I think we are                 

A. being followed             B. are followed              C. follow                         D. following

20. Have you                  by a dog?

A. bite                               B. bit                              C. ever been bitten          D. ever been bit

21. The room is being                  at the moment.

A. was cleaned                  B. cleaned                      C. cleaning                       D. clean

22. It                  that the strike will end soon.

A. is expected                   B. expected                    C. are expected               D. was expected

23. I'll get Minh                  this for you.

A. do                                 B. done                          C. did                              D. to do

24. Those letters                  now. You can do the typing later.

A. need typing                  B. needn't be typed        C. need to type                D. needn’t to typing

25. “What a beautiful dress you are wearing"- “Thanks, it                  especially for me by a French tailor."

A. is made                         B. has made                   C. made                           D. was made