The teacher asked the students______
A.if they were interested in dinusaurs
B.when was Albert Einstein born
C.what they will do with the computers
D.how many trees they have planted
问：为什么选A而不选D?
人气：206 ℃ 时间：2019-11-15 07:21:44
解答
正确：A
宾语从句时,主句为一般过去时时,从句通常套用过去时态的某种形式.如果D的have改为had,则也是正确的.
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