问题
选择题
You can't complain of being left out you don't make any effort to share your happiness and sorrow
with others.[ ]
A. when
B. unless
C. once
D. though
答案
答案：A
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You can't complain of being left out you don't make any effort to share your happiness and sorrow
with others.[ ]
A. when
B. unless
C. once
D. though
答案：A