Câu hỏi: It is important that you turned off the heater every morning before you leave for class.

A. turned off

B. before

C. important

D. leave for

Câu 1: I had my motorbike repair yesterday but now it still doesn’t work.

A. had

B. repair

C. but now

D. work

Câu 2: Hardly did he enter the room when all the lights went out.

A. did he enter

B. when

C. the lights

D. went

Câu 3: My father asked me where had I gone the night before.

A. asked

B. the 

C. before

D. had I

Câu 4: There are many reasons why a particular species may become endangering.

A. endangering

B. may

C. a

D. reasons why

Câu 5: Should you mind telling me the way to the nearest restaurant?

A. Should

B. telling me

C. to

D. nearest

Câu 6: The director, as well as his wife and two children, were injured in the accident.

A. the

B. well

C. were

D. in