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问题: 状语从句64,78

64.Time passed quickly and three months went by_______we knew it.
A.after B,till C.before D.when

78.It was three weeks______she realized that she was fooled y her friends.
A.after B.before C.that D.UNTIL

两题看似类似,答案是不一样的。

解答:

64.应该选C.
before 有“过了。。。时间后才...
78.应该选B.
固定的表达,此题最大的误区就是选D了.
如果选D的话,代入题目,意思就变了,直到她发现???