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

A. was inviting

B. invited

C. had been inviting

D. will invite

Câu 1: We .............. since 5:00.

A. talk

B. are talking

C. talking

D. have been talking

Câu 2: I .............. Michael for years.

A. have known

B. know

C. knowing

D. was known

Câu 3: The telephone .............. ten times before Patsy finally answered it.

A. rings

B. ringing

C. had rung

D. is ringing

Câu 4: I ................. the house before you called.

A. leave

B. am leaving

C. had left

D. had been leaving

Câu 5: We always...................... a present to Elsa on her birthday.

A. are taking

B. taking

C. take

D. are taken

Câu 6: Before the police arrived, the robbers ..........................

A. run

B. had run

C. have run

D. have been running