问题: 选择题 要说明理由
1 It happened________a winter night.
A at B in C by D on
2.I know it's important but I can't help_______about it.
A.but to think B.thinking C.to D.think
解答:
1. D on on表示某一天或某天中的某段时间。如：on Sunday，on the morning of May 1，on March 8， on a cold spring morning.例句:(1)The new millennium will arrive on a winter night.(2)Now what kind of friends want to steal a nice, warm bag out from around a guy on a winter night? in表示在某年、某季度、某月、某周、一天中某段时间。如：in 1999，in spring，in February，2002，in a week，in the evening. at表示某个具体的时刻。如：at eight o＇clock，at this time of year，at the moment，at the same time. 2. B. thinking couldn\'t help（不禁,忍不住）+ 动名词 为习惯用法.
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