I'd like to know __ chinses.A.when he began to learnB.when did he begin to learnC.when did he begin learning D.for how long he begian to learn

分类: 作业答案 • 2022-05-17 22:18:14

问题描述：

I'd like to know __ chinses.
A.when he began to learn
B.when did he begin to learn
C.when did he begin learning
D.for how long he begian to learn

答