You can’t appreciate happiness you have known sadness too.A. becauseB. whenC. thoughD. un

发布时间：2020-08-16 20:51:28

You can’t appreciate happiness      you have known sadness too.
A. because
B. when
C. though
D. unless

网友回答

A. because
B. when
C. though
(答案→)D. unless
解析：考查连词用法。句意为除非你知道悲伤，你就不能感激幸福。Unless = if not
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