摘要： Don't be afraid of asking for help it is needed. A. unless B. since C. although D. when 析:根据句意A.C可排除.从属连词since若引导时间状语从句表自从-以来显然不对.如引导原因状语从句则表示事实原因.也不对.应该排除.这儿应该需要一个引导时间或条件状语从句的连词.而D答案when引导时间状语有条件的味道.应为正确答案.
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Don’t be afraid of asking for help ________ it is needed
A. unless B. since
C. although D. when
查看习题详情和答案>>1. Don’t be afraid of asking for help _______ it is needed.
A. unless B. since C. although D. when
查看习题详情和答案>>Don't be afraid of asking for help _____ it is needed.
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A. unless
B. since
C. although
D. when
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B. since
C. although
D. when