Question

【题目】Everyone can make great progress______he works hard.
A.unless
B.as long as
C.when
D.while

Answer 1

【答案】B
【解析】考查连词辨析。句意：只要努力，每个人都能取得进步。. unless “除非”； as long as“只要”；when“当…..时候”；while"当...…时候，然而，却"。根据句意可知选B。