【題目】Everyone can make great progress______he works hard.

A. unless B. as long as

C. when D. while

【答案】B

【解析】考查連詞辨析。句意：只要努力，每個人都能取得進步。. unless 除非； as long as，只要；when當…..時候。 While當…時候，然而，卻。從句意可知選B。

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