难度：★    考点：宾语从句

　　1. -Do you know _____ he is going to stay in Shenzhen?

　　-Sorry, I don't know. Maybe a few weeks, but I'm not sure.

　　A. when B. how long C. what time D. how soon

　　2. I don't know ______ Apple iphone4s.

　　A.    that she is so crazy about  B. what is she so crazy about

　　C. why she is so crazy about  D. how she is so crazy about

　　3．We've given her some advice, but I don't know________ she'll accept it．

　　A．what    B．where    C．whether   D．which

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