问题
选择题
_____ the end of last term, we had learned 2,000 words. [ ]
A. By
B. At
C. In
D. Since
答案
答案：A
搜题请搜索小程序“爱下问搜题”
_____ the end of last term, we had learned 2,000 words. [ ]
A. By
B. At
C. In
D. Since
答案：A