Question 13. You have never seen UFOs, _____?

       A. had you             B. have you              C. haven't you          D. has you
cau hỏi đuôi

Question 14. when the sun doesn’t shine, we don’t have_________ energy

A. Wind                  B. water                    C. solar                                D. nuclear
Solar energy: năng lượng mặt trời

Question 15. A large number of people_________ when homes, office blocks and highways collapsedby the earthquake last night

A. killing                     B. was killed               C. were killed              D. killed
Bị động

Question 16.   I wish I_________ more about the logistics of the expedition.

A. knew                      B.  would know                      C. know                      D . can know

Question 17. “I’m sorry, we don’t have your size.” - “_____”

A. I’ll take it.            B. I hope so.             C. What a pity!                  D. I don’t like it.

Question 18. Do you _________in touch with your new roommate or do you two argue ?

A. Keep                       B.do             C. make              D. have
keep in touch: giữ liên lach