问题
选择题
He _____ a worker in a factory, but he _____ a pop star two years ago. [ ]
A. used to be… has become
B. used to be… became
C. was used to be…becomes
D. was used to being… has become
答案
答案:B
He _____ a worker in a factory, but he _____ a pop star two years ago. [ ]
A. used to be… has become
B. used to be… became
C. was used to be…becomes
D. was used to being… has become
答案:B