Câu hỏi: Doctors _____ a cure to AIDS yet.

A. have found

B. found

C. haven't found

D. hasn't found

Câu 1: Glenda…………..extremely hard when she was a student.

A. worked

B. has worked

C. was working

D. had been worked

Câu 2: We…………..in this town for a long time. We…………..here sixteen years ago.

A. had been/come

B. have been/came

C. were/came

D. are/came

Câu 3: Do you mind _____ up?

A. wash

B. washing

C. washed

D. to wash

Câu 4: He enjoys _____ in the rain.

A. walk

B. walks

C. to walk

D. walking

Câu 5: According to the research reports, people usually ………….. in their sleep 25 to 30 times each night.

A. turn

B. are turning

C. have turned

D. turned

Câu 6: Would you like..................... somewhere for a rest?

A. going

B. to go

C. go

D. to be gone