the problem is what we should dowith this machine 请问what在句子中充当什么成分

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theproblemiswhatweshoulddowiththismachine请问what在句子中充当什么成分theproblemiswhatweshoulddowiththismachine请问

the problem is what we should dowith this machine 请问what在句子中充当什么成分
the problem is what we should dowith this machine 请问what在句子中充当什么成分

the problem is what we should dowith this machine 请问what在句子中充当什么成分
what we should do with this machine 因为是接在系动词is的后面,所以是一个表语从句,在句子中充当表语.而what是在表语从句中充当do的宾语.

表语从句引导词,做从句的宾语

表从的引导词

表语从句引导词