问题
选择题
—How did the accident happen?
—You know, it was difficult to see the road clearly because it . [ ]
A. is raining
B. rains
C. was raining
D. has rained
答案
C
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—How did the accident happen?
—You know, it was difficult to see the road clearly because it . [ ]
A. is raining
B. rains
C. was raining
D. has rained
C
