I’m sorry you’ve been waiting so long, but it’ll still be some time _________ Brian gets.back.
A．beforeB．since
C．tillD．a(chǎn)fter
A。
根據(jù)句意，只有填before時意思最通順。It’ll be some time before…是英語中一個很有用的句式，其意為“要過一段時間才……”，如：It’ll be some time before we meet again. 要過一段時間我們才能見面。有時也可用其他時態(tài)，如：It was some time before we struck the track. 我們用了很長時間才找到了路。
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