[题目]We had to be patient because it some time we got the full results.A.has been; sinceB.had been; untilC.was; afterD.would be; before 题目和参考答案——青夏教育精英家教网—

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【题目】We had to be patient because it ______ some time ______ we got the full results.
A.has been; since
B.had been; until
C.was; after
D.would be; before

【答案】D
【解析】在“it＋be＋一段时间＋before/after/since＋从句”句型中，before从句中的动作经过一段时间后才会实现；after从句中的动作发生后已经过去了一段时间；since从句中的动作完成后到现在已经有一段时间了。

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