____ the end of last week, l had met ten

考试题库2022-08-02  17

问题 ____ the end of last week, l had met ten of my old friends.(  )A. OnB. InC. ByD. Since

选项 A. On
B. In
C. By
D. Since

答案 C

解析 By表示“直到……”,用于完成时。句意为:直到上周末,我已经见了十个老朋友了。
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