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．in an 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．in an instant
答案：A
