We have learned English ________ six years．A．since B．for

题型：不详难度：来源：

We have learned English ________ six years．
A．since B．for C．on

答案

解析

此题考查介词for和since在现在完成时中的区别，for后跟段时间，since后跟点时间，都表示段时间。

举一反三

The accident happened ________ the afternoon of April 15.

A．on

B．at

C．in

D．to

题型：不详难度：| 查看答案

If you can’t get to sleep, then get up and try to do something,
lying in bed.
A． and B． or C． instead of

题型：不详难度：| 查看答案

Thanks for _________ my friend to your party.

A．invite

B．to invite

C．invites

D．inviting

题型：不详难度：| 查看答案

-- Sally, you must introduce your friend ___________ me.
-- OK, I will.

A．for

B．to

C．at

D．in

题型：不详难度：| 查看答案

The Sydney Opera House is like a huge sailing boat with water ____ three sides.

A．at

B．of

C．in

D．on

题型：不详难度：| 查看答案