I wrote to my parents once a week,____ I was too busy with my teaching work.A．i

题型：不详难度：来源：

I wrote to my parents once a week,____ I was too busy with my teaching work.

A．it

B．unless

C．when

D．as

答案

解析

unless＝if...not。

举一反三

It shocked me to see ______ my neighbors treated their children.

A．why	B．whether
C．how	D．since

题型：不详难度：| 查看答案

—Would you like to come to dinner tonight?
—I’d like to, ___ I’m too busy.

A．and	B．so
C．as	D．but

题型：不详难度：| 查看答案

We are living in an age ______ many things are done on computer.

A．which

B．that

C．whose

D．when

题型：不详难度：| 查看答案

—Do you think we can get there on time?
—Yes,_________ the bus does not break down.
A.even if .unless C.until D.so long as

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3. It is exactly its great success in rural reforms _____ prompted the country to make a bigger leap forward in the reform and opening-up drive.

A．where

B．what

C．that

D．when

题型：不详难度：| 查看答案