Câu hỏi: I .............. Michael for years.

A. have known

B. know

C. knowing

D. was known

Câu 1: Before the police arrived, the robbers ..........................

A. run

B. had run

C. have run

D. have been running

Câu 2: We .............. since 5:00.

A. talk

B. are talking

C. talking

D. have been talking

Câu 3: Some people are using motorbikes for transportation; ....................., others are taking publicvehicles to get to their destination.

A. hence

B. otherwise

C. therefore

D. besides

Câu 4: The Wagners ................ to Florida two years ago.

A. moved

B. had been moving

C. move

D. will move

Câu 5: Mr. and Mrs. Wilson .............. some disputes with their neighbors.

A. having

B. have been having

C. have having

D. have been had

Câu 6: I don't want to go outside today because it ....................

A. rain

B. rains

C. is raining

D. is rain