题目
23. (1.0分) John ( ) some Chinese before he came to China.A. learnedB. learnsC. had learnedD. learn
23. (1.0分) John ( ) some Chinese before he came to China.
A. learned
B. learns
C. had learned
D. learn
题目解答
答案
C. had learned
A. learned
B. learns
C. had learned
D. learn