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【題目】We won’t take action ________ we believe things are getting better.

A. though B. however C. unless D. where

【答案】C

【解析】考查連詞。句意：我們不會采取行動，除非我們相信情況正在好轉。A. though盡管；B. however然而；C. unless除非；D. where在哪里。根據題干won’t得知，此題要表達“除非……否則……”。故選C項。

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