问题
选择题
Don't stop ________ you meet with a word you don't understand.[ ]
A. at the time
B. each time
C. by the time
D. sometimes
答案
答案：B
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Don't stop ________ you meet with a word you don't understand.[ ]
A. at the time
B. each time
C. by the time
D. sometimes
答案：B