Whats the man doing?A.Reading a newspaper.B.Having dinner.C.Cleaning the house.D.Watching

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Whats the man doing?

A.Reading a newspaper.

B.Having dinner.

C.Cleaning the house.

D.Watching TV.

请帮忙给出正确答案和分析,谢谢!

热搜:a是b的充分条件,b是a的必要条件吗