You can’t imagine what great trouble they have______the problem

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问题 You can’t imagine what great trouble they have______the problem

选项 A、to solve; being discussed
B、solving; being talked about
C、to solve; to talk about
D、solving; to discus

答案B

解析 本题考查固定用法及非谓语动词。句意为“你无法想象他们解决这个正在讨论的问题有多难”。have trouble(in)doing sth.“做某事有困难”,故第一个空用solving;第二个空用现在分词的被动语态being talked about作后置定语修饰problem,表示“正在被讨论的问题”。故本题选B。
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