根据提示填空(每空一词)
My friend must bring his homework to school tomorrow afternoon.(对加粗部分提问)
____ ____ your friend ____tomorrow afternoon?
答案
What,must,do

根据句意,对“bring his homework to school”提问时,要用特殊疑问词“what”;在含有must的特殊疑问句中,需要把must提到主语前面,动词do用原形。注意不需要借助助动词do或does。

略
