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Sincetheroadiswetthismorning,---------lastnight.AitmustrainBitmusthaveraindeCitmustberainingDitmusthavebeenraining
题目内容：
Since the road is wet this morning,---------last night.
A it must rain B it must have rainde C it must be raining D it must have been raining优质解答
B
过去完成时
昨晚一定下过雨了
A是一定要\会下雨
C是进行时态,排除
D是过去完成进行时,也排除
A it must rain B it must have rainde C it must be raining D it must have been raining
优质解答
过去完成时
昨晚一定下过雨了
A是一定要\会下雨
C是进行时态,排除
D是过去完成进行时,也排除
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