【題目】If you miss this chance, it might be years____you get another one.

A. as B. before

C. since D. after

【答案】B

【解析】如果你錯(cuò)失了這次機(jī)會(huì)，你在獲得下一次機(jī)會(huì)之前，還有幾年時(shí)間。as 因?yàn)椋?/span> before

在……之前， since 自從，after在……之后，選B。

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