Câu hỏi: I ................. the house before you called.

A. leave

B. am leaving

C. had left

D. had been leaving

Câu 1: Mr. and Mrs. Wilson .............. some disputes with their neighbors.

A. having

B. have been having

C. have having

D. have been had

Câu 2: The Smiths are eating less and exercising more; ..............., they can keep their weight down and stay in shape.

A. Consequently

B. also

C. nevertheless

D. otherwise

Câu 3: We ....................... in the plane for hours when it finally, took off.

A. had been sitting

B. have sat

C. will be sitting

D. will sit

Câu 4: Paul and Linda .............. us to their party last weekend.

A. was inviting

B. invited

C. had been inviting

D. will invite

Câu 5: Before the police arrived, the robbers ..........................

A. run

B. had run

C. have run

D. have been running

Câu 6: We .............. since 5:00.

A. talk

B. are talking

C. talking

D. have been talking