题干
—Was the driving pleasant when you vacationed in Mexico last summer?
—No, it _______ for four days when we arrived, so the roads were very muddy.
—No, it _______ for four days when we arrived, so the roads were very muddy.
A：has rained
B：had been raining
C：rained
D：has been raining
答案(点此获取答案解析）
B
