he had not been ill , Tom would have won the race.A. UnlessB. AsC. IfD. Until

发布时间：2020-08-15 00:10:51

     he had not been ill , Tom would have won the race.        
A. Unless
B. As
C. If
D. Until

网友回答

A. Unless
B. As
C. If
D. Until
解析：      题意：如果汤姆没有生病，他就会赢得那场赛跑。if引导虚拟的条件状语从句。
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