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

 

---How was your weekend, Jeff?

---It was quite busy. I _________ all the time.

A. played the guitar       B. went shopping

C. studied for the tests     D. visited my friends

 

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 last month, I _____ all the CDs of Justin Bieber.

A．collect

B．collected

C．have collected

D．had collected