—When did the Shanghai Expo open? —_______May 1st, 2010.A．InB．OnC．AtD．By

题型：不详难度：来源：

—When did the Shanghai Expo open?
—_______May 1st, 2010.

A．In

B．On

C．At

D．By

答案

解析

在时间前只要有天的前用介词on，本题中有个1号，故本题选B。

举一反三

China lies the east of Asia.

A．in

B．on

C．To

D．of

题型：不详难度：| 查看答案

It is very kind _____ you to help me with my lessons. It is difficult _____me to learn them well.

A．of , of

B． for , of

C．of , for

D．for , for

题型：不详难度：| 查看答案

This pair of jeans looks nice___ Sandy because she looks very nice___ blue.

A．on; in

B．in; on

C．for; on

D．to; in

题型：不详难度：| 查看答案

Usually he writes in ink and writes _______ his left hand.

A．on

B．in

C．by

D．with

题型：不详难度：| 查看答案

If you try to sit on two chairs，you will fall them For life，you must
choose one chair．
A between B under C among D into

题型：不详难度：| 查看答案