The UN officials say it could be many weeks and even months ____ a deal is reached．
A．beforeB．a(chǎn)fterC．whenD．a(chǎn)s
A
連詞辨析.    A．在……之前B．在……之后 C．當(dāng)……時候 D．隨著。句意：聯(lián)合國官員說在達(dá)成協(xié)議之前可能有幾周甚至幾個月的時間。故選A。
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