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-David will win the first prize. -Are you sure?- . He is always working hard. [

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-David will win the first prize. -Are you sure?- . He is always working hard. [

-David will win the first prize.
-Are you sure?
-________. He is always working hard. [     ]A.It's my guess  
B.It's up to you
C.That depends  
D.It's hard to say

试题答案

A