题目内容
() 13. Mike used to be a top student,but he behind since he lost himself in computer games. (2015 江苏常熟)
A. fell B. has fallen
C. was D. has been
B
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题目内容
() 13. Mike used to be a top student,but he behind since he lost himself in computer games. (2015 江苏常熟)
A. fell B. has fallen
C. was D. has been
B