问题
选择题
It _____ more than half a year since I _____ a teacher. [ ]
A. is, become
B. was, become
C. is, became
D. has been, becomes
答案
答案：C
搜题请搜索小程序“爱下问搜题”
It _____ more than half a year since I _____ a teacher. [ ]
A. is, become
B. was, become
C. is, became
D. has been, becomes
答案：C