从所给的四个选项中选择最佳答案-How many English songs ______ by the end of last term?  -Only five.

从所给的四个选项中选择最佳答案

-How many English songs ______ by the end of last term?  

-Only five.

A.did you learn

B.have you learned

C.had you learned

D.would you learn

答案及解析： C