问题标题:
用所给单词的适当形式填空1Helefthisclassroomwithout___(say)anything.2Don'tplay___(trick)onothersinclass.3Thelittleboyis____(scratch)hishairnow,hehassomethingtosay.4Whatarethosecables____(connect)to?
问题描述:

用所给单词的适当形式填空

1Helefthisclassroomwithout___(say)anything.

2Don'tplay___(trick)onothersinclass.

3Thelittleboyis____(scratch)hishairnow,hehassomethingtosay.

4Whatarethosecables____(connect)to?

成旭华回答:
  1.saying因without后加动名词   2.tricks,要复数形式,固定说法   3.scratching,现在进行时   4.connected,被动语态,应为cable本身不会互相连接,所以要用被动语态
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