(2013·河南開封四模)One more week, ________ we will accomplish the task better.
A．orB．butC．unlessD．a(chǎn)nd
D
D　考查連詞。句意：再給一周，我們就會更好地完成任務(wù)。or表示選擇；but表示轉(zhuǎn)折；unless除非，表示條件；and表示遞進(jìn)。本句相當(dāng)于If we are given one more week，we will accomplish the task better.故選D項。
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