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选择填空1. it has stopped raining,let's start to work.A.While B.

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选择填空
1. it has stopped raining,let's start to work.
A.While B.Since C.For D.Because
2.Father wanted to know( )next.
A.how to do B.what to do
3.I can't tell _________or not.
A.if he needs any help B.whether he needs any help
另附说明 3x!
选择填空1. it has stopped raining,let's start to work.A.While B.
1.只有since有既然的意思,所以根据句意需要,B
2.与how和what的词性有关系,what连接代词how连接副词
所以应该是how to do it 和what to do,选B
3.whether or not 中学阶段你可以把它背成一个短语,记住虽然都是从属连词,但if不能加or not选B