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: I…………..at the checkout when I………….. a strange-looking man.

A. waited/noticed

B. was waiting/noticed

C. waited/was noticing

D. was waiting/had noticed

Câu 3: Dad allowed Dora......................... to the party.

A. going

B. to go

C. go

D. gone

Câu 4: 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 5: I'd like to borrow this book. .................................. it yet?

A. Did you read

B. Had you read

C. Have you read

D. Do you read

Câu 6: Ann is interested in.................... young children.

A. teach

B. teaches

C. to teach

D. teaching