were sb doing还是were sb did sth?
就像这个句子:
Were they planting a big tree in the garden?
还是
Were they planted a big tree in the garden?
那个...
还有一个
We must buy enough food for the trip.
怎样改一般疑问句?
人气:479 ℃ 时间:2020-05-16 02:36:39
解答
Were they planting a big tree in the garden?
be 动词后面跟ing形式的
Must we buy enough food for the trip?
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