We had to be patient because it ________ some time ________ we got the full resu
题型：不详难度：来源：
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 |
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答案
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解析
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。结合题意可知，答案为D项。 |
举一反三
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