【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"。根據(jù)句意可知選B。

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