问题描述:
直接引语和间接引语
I'd like to know _____ Chinese.
A.when he began to learn
B.when did he begin to learn
C.when did he begin learn
D.for how long he began to learn
I'd like to know _____ Chinese.
A.when he began to learn
B.when did he begin to learn
C.when did he begin learn
D.for how long he began to learn
问题解答:
我来补答展开全文阅读