题目内容：
--I think it's going to be a big problem.--Yes, it could be. I wonder _________ we can do about it. A．[ A ] if
B．[ B ] how
C．[ C ] what
D．[ D ] that
参考答案：
答案解析：
单选题：--I think it's going to be a big problem.--Yes, it could be.
- 题目分类：公共英语二级
- 题目类型：单选题
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--Yes, it could be. I wonder _________ we can do about it. A．[ A ] if
B．[ B ] how
C．[ C ] what
D．[ D ] that