— Could you please do some shopping for me, Mary?— Sorry, I ______ my homework.

题型：不详难度：来源：

— Could you please do some shopping for me, Mary?
— Sorry, I ______ my homework.

A．do

B．am doing

C．have done

D．was doing

答案

解析

当别人请你做某事的时候，我们表示拒绝，应该是正在做或将要做别的事，可用进行时态的结构来表示，故本题选B。意思为我正在做作业。

举一反三

If he _____ his homework, he’ll go to the movies tonight.
A. will finish B. finish C. finishes

题型：不详难度：| 查看答案

________ you ________ the Space Museum?
A. Have; been B. Have; ever been to C. Have; ever gone to

题型：不详难度：| 查看答案

Our country the sixth population census(人口普查) already.

A．finished

B．has finished

C．will finish

D．finishes

题型：不详难度：| 查看答案

The workers a new bridge now. The traffic in our city will be better soon.

A．build

B．built

C．are building

D．were building

题型：不详难度：| 查看答案

Mr. Black is going to marry a girl he __________ in Japan last year.

A．meets

B．met

C．has met

D．would meet

题型：不详难度：| 查看答案