Question

The government has taken some measures to solve the problem of unemployment, but it may be some time ______ the situation becomes better.

A．before

B．since

C．a(chǎn)fter

D．unless

Answer 1

A

試題分析：考查連詞用法。“It be+一段時間+before…”是固定結(jié)構(gòu)，該結(jié)構(gòu)的意思是“要過……（長）時間才……”。when“．．．．．．的時候”；since“從．．．．．．開始”；unless“除非”；根據(jù)題意：政府已經(jīng)采取措施解決失業(yè)問題，但是還要一段時間形勢才能緩解。D最佳。