“Aha, you’re a chain smoker!” “Only at home. Nobody that but you.”A. discoveredB. had di

发布时间：2020-08-17 14:29:13

“Aha, you’re a chain smoker!” “Only at home. Nobody      that but you.”
A. discovered
B. had discovered
C. discovers
D. is discovering

网友回答

A. discovered
B. had discovered
(答案→)C. discovers
D. is discovering
解析：答句陈述的是客观事实，故用一般现在时态。
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