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