问题描述：
It must be John.Who else would _____ he does?A.work hard as B.be working as hard as C.
It must be John.Who else would _____ he does?
A.work hard as B.be working as hard as
C.do harder work than D.work harder than
为嘛答案是b而不是d
It must be John.Who else would _____ he does?
A.work hard as B.be working as hard as
C.do harder work than D.work harder than
为嘛答案是b而不是d
问题解答：
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