【題目】 We had to be patient because it ______ some time ______ we got the full results.

A.was; since B.had been; since

C.would be; before D.was; before

【答案】C

【解析】

試題分析: 考查固定搭配:It be 一段時(shí)間 before…一段時(shí)間以后某事才發(fā)生;如果before后面使用一般現(xiàn)在時(shí),前面的主語使用將來時(shí);如果before后面使用一般過去時(shí),前面也使用一般過去時(shí);句義:我們不得不耐心等待,因?yàn)橐欢螘r(shí)間以后我們才能得到完全的結(jié)果。本句前面都使用了過去的時(shí)態(tài)。故C正確。

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