– Unfortunately, I won’t have time to visit the World Expo 2010 I’m in Shanghai.– What a

发布时间：2020-08-16 10:20:08


– Unfortunately, I won’t have time to visit the World Expo 2010      I’m in Shanghai.
– What a great pity!    
A. until
B. since
C. while
D. unless

网友回答

A. until
B. since
(答案→)C. while
D. unless
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