问题
选择题
You see the lightning ____ it happens, but you hear the thunder later. [ ]
A. the instant
B. for an instant
C. on the instant
D. at instant
答案
答案：A
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You see the lightning ____ it happens, but you hear the thunder later. [ ]
A. the instant
B. for an instant
C. on the instant
D. at instant
答案：A