— Why not go out to play with them? —Sorry. I haven't finished my homework yet, I ______ my mother in the kitchen all day yesterday.

1. — Why not go out to play with them?

—Sorry. I haven't finished my homework yet, I ______ my mother in the kitchen all day yesterday.

A. have been helping B. had helped C. was helping D. had been helping

【考点】

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【答案】

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单选题普通

1. —What were you doing when Tony phoned you?

—I had just finished my work and ____to take a shower.

A. hadstarted B. started C. havestarted D. was.starting

单选题普通

2. The manager was concerned to hear that two of his trusted workers ______.

A. will leave B. are leaving C. have left D. were leaving

单选题普通

3. —Do you remember the first time we met?

—Yes. It happened at the airport and we _______to leave for Tianjin.

A. had been waiting B. were waiting C. would wait D. waited

单选题普通