Bill won't make any progress______ he studies harder than before. [ ]A.if B.when C.because D.un

题目简介

Bill won't make any progress______ he studies harder than before. [ ]A.if B.when C.because D.un

题目详情

Bill won't make any progress______ he studies harder than before.
[     ]
A.if
B.when
C.because
D.unless
题型:单选题难度:中档来源:河北省期末题

答案

D

更多内容推荐