By the end of the last month, I all the CDs of Justin Bieber.A. collectB. collectedC. hav

发布时间：2020-08-20 22:58:47

By the end of the last month, I      all the CDs of Justin Bieber.
A. collect
B. collected
C. have collected
D. had collected

网友回答

A. collect
B. collected
C. have collected
(答案→)D. had collected
解析：这里是考核时态的内容，根据by the end of+过去时间，我们知道是考核“过去完成时”的内容。
以上问题属网友观点，不代表本站立场，仅供参考！