We 3 000 English words by the end of last year.A. have learnedB. had learnedC. learnedD. l

问题补充：

We 3,000 English words by the end of last year.

A. have learned

B. had learned

C. learned

D. learn

答案：

A. have learned

(答案→)B. had learned

C. learned

D. learn

解析：可联系答.案.网客服索取。