问题
选择题
Facing a beggar, I may feel this poor person needs help, and the need will not be met _____ I put my
hand in my pocket now.[ ]
A. since
B. in case
C. unless
D. while
答案
答案：C
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Facing a beggar, I may feel this poor person needs help, and the need will not be met _____ I put my
hand in my pocket now.[ ]
A. since
B. in case
C. unless
D. while
答案：C