By the end of last month, I _____ all th
题型:选择题
问题:
By the end of last month, I _____ all the CDs of Justin Bieber. [ ]
A. collect
B. collected
C. have collected
D. had collected
By the end of last month, I _____ all the CDs of Justin Bieber. [ ]
A. collect
B. collected
C. have collected
D. had collected