Câu hỏi: He _____ to give up smoking since last week.

A. was trying

B. have tried

C. has tried

D. tried

Câu 1: 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 2: What does your brother . . . . . . . . . . . . . . ?

A. look like

B. look as

C. be like

D. as

Câu 3: The news came as no surprise to me. I…………..for some time that the factory was likely to close.

A. knew

B. had known

C. have existed

D. exist

Câu 4: Ann is interested in.................... young children.

A. teach

B. teaches

C. to teach

D. teaching

Câu 5: Just keep on................ what you like.

A. do

B. did

C. doing

D. done

Câu 6: The World War II ………….. in 1939 and ………….. in 1945.

A. begins/ends

B. had begun/ended

C. has begun/had ended

D. began/ended