题目内容

He didn't go to school yesterday ________ he was ill.

[  ]

A.

because

B.

because of

C.

if

D.

so

答案:A
解析:

  考查连词的用法。句意:他昨天没来上学是因为他生病了。应用because来引导后面的句子。because of后面接名词或名词性短语。故选A。


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