We had worked only one hour it began to rain so heavily that we had to put up our tent.[ ]A. before

题目简介

We had worked only one hour it began to rain so heavily that we had to put up our tent.[ ]A. before

题目详情

We had worked only one hour     it began to rain so heavily that we had to put up our tent.
[     ]
A. before          
B. when          
C. after            
D. until
题型:单选题难度:中档来源:山东省模拟题

答案

B

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