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这个英语题为什么选A不选D
It was about 600 years ago ()the first clock with a face and an hour hand was made.
A that
B until
C before
D when
人气:404 ℃ 时间:2020-04-01 03:25:53
解答
看从句:the first clock with a face and an hour hand was made.是一个不完整的被动句.所以要用that(关系代词)来补充完整.when是关系副词,如果从句时一个完整的句子(主谓宾/主系表/……皆全)才用 改it + be动...
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