北师大网络教育《专科英语一》作业3部分答案

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Seldom ______ to the library during his college days.

he went

did he go

does he go

he goes

2、

Many students were seen ______ in the last exam.

being cheating

to cheat

cheat

cheated

3、

The house ______ roof is blue has just been finished.

whose

which

that

whom

4、

Who will know how to ________ the system?

permit

found

employ

operate

5、

I have a _____ idea of what I want to express.

generous

general

regular

widespread

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