题干

We had to be patient because it ______ some time ______ we got the full results.
A.was; sinceB.had been; since
C.would be; beforeD.was; before
上一题 下一题 0.85难度 单项选择 更新时间:2015-07-08 09:43:04

答案(点此获取答案解析)