only after---his homework---to watch tv,

问题描述:

only after---his homework---to watch tv,
only after---his homework---to watch tv
1he has finished,is he allowed
2has he finished,is he allowed
3 finished,is he allowed,he is allowed
4has he finished ,he is allowed
1个回答 分类:英语 2014-12-10

问题解答:

我来补答
选第一个吧.
only放句首的时候,主句要倒装,所以第二个空是“is he allowed”,排除3和4,而从句不需要倒装,所以选择第1个.
 
 
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