Câu hỏi: Please be quiet because I    ............... to the radio right now.

A. listened

B. listen

C. am listening

D. was listening

Câu 1: I’m afraid of ................ alone at night.

A. to walk

B. walk

C. walked

D. walking

Câu 2: Be careful. You ...................... into delicate negotiations at the conference next week.

A. will have been entering

B. have entered

C. are entering

D. will have entered

Câu 3: While Harry was walking to work, he ....................... a car accident

A. saw

B. was seeing

C. sees

D. is seen

Câu 4: Decide whether the following Conditional Sentences are Type I, II or II.

A. Type I

B. Type II

C. Type III

Câu 5: When I walked in the door, I .................. the telephone ring.

A. heard

B. hear

C. was hearing

D. am hearing

Câu 6: I ................ it's time to leave now, don’t you?

A. am thinking

B. think

C. was thinking

D. thought