It’s a serious problem．We can’t decide Mr. Harris comes back． A．while B．since ——青夏教育精英家教网——

题目内容

8、It’s a serious problem．We can’t decide________ Mr. Harris comes back．

A．while B．since C．until D．so

试题答案

8、C not…until…“直到…才…”。故选C。

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It’s a serious problem．We can’t decide________ Mr. Harris comes back．

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It's a serious problem．We can't decide ________ Mr Harris comes back．

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