Ireallydon’tknow
- 習題庫
- 關注:1.7W次
問題詳情:
I really don’t know_____ the problem.
A. what to solve B. how to solve C. why to solve D. who to solve
【回答】
B
知識點:非謂語動詞
題型:選擇題
標籤:
Ireallydon tknow
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