问题描述:
What do you think of his proposal that improvements____in the old type of vacuum cleaner?
A.be made B.will be made C.would be made D.will have to be made
怎么选啊?为什么啊?
A.be made B.will be made C.would be made D.will have to be made
怎么选啊?为什么啊?
问题解答:
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