问题描述:
So difficult __ it to work out the problem that I decided to ask Tom for advice.
B.did I find D.have I found
这个选b 请问是不是如果把d中的have 变成had ,d也对
B.did I find D.have I found
这个选b 请问是不是如果把d中的have 变成had ,d也对
问题解答:
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