-_____?-I'm reading a book.A.What about you B.Really C.Why not D.What are you up to

-_____?-I'm reading a book.A.What about you B.Really C.Why not D.What are you up to
-_____?-I'm reading a book.A.What about you B.Really C.Why not D.What are you up to

-_____?-I'm reading a book.A.What about you B.Really C.Why not D.What are you up to
D
What are you up to你准备干什么?
=What are you doing?
B.really真正的
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我感觉选a,意思是 真的吗
望采纳

D
B是 真的吗？