— Has Sam finished his homework today?　　— I have no idea. He ________ it this mo

题型：不详难度：来源：

— Has Sam finished his homework today?　　
— I have no idea. He ________ it this morning.　　

A．did

B．was doing

C．has done

D．had done

答案

解析

考查动词的时态。根据this morning可知句子要用一般过去时态的某种形式，且表明今天早晨我看见他时他正在做作业，所以选B。

举一反三

His sudden ______ of violent anger put an unpleasant end to the meeting.

A．break

B．burst

C．attack

D．express

题型：不详难度：| 查看答案

－We could have asked Mr. Zhang for help. He is always ready to help others.
－I ________ that. A long time _______.

A．have forgot, wastes	B．forgot, wasted
C．forgot, was wasted	D．forgot, has been wasted

题型：不详难度：| 查看答案

Mr. Irvine, who ________ in a high school for forty years, is now living in retirement.

A．had taught

B．taught

C．has taught

D．had been teaching

题型：不详难度：| 查看答案

It’s the love and responsibility that have driven him to ____ many hardships and survive.

A．go into

B．go through

C．look through

D．look into

题型：不详难度：| 查看答案

He was found guilty. _____, he lost the job and was blamed for incompetence.

A．In case

B．As a consequence

C．After all

D．In a row

题型：不详难度：| 查看答案