摘要： I admit there are differences between us, I don’t think they can separate us. A. When B. If C. While D. As
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____ I admit the problems are difficult, I don’t agree that they can’t be solved.
A. Until B. While C. As D. Unless
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_ ______ I admit the problem is very serious, I don’t think it can’t be solved.
A. While B. When C. As D. Because
查看习题详情和答案>>_______ I admit the problem is very serious, I don’t think it can’t be solved．
A．While B．When C．As D．Because
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