疑问副词能不能在宾语从句中做宾语或者表语?

例如:I want to know how he shall do.
we wonder where he is.这两句中是疑问副词做的宾语和表语啊。

不对,第一句话应该改为I want to know how(作状语) he shall do it.或者what(作宾语) he shaii do.第二句是作表语。
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