问题
I’d like to know ________ Chinese.
A:when he began to learn
B:where did he begin to learn
C:when did he begin learning
D:for how long he began to learn;
B:where did he begin to learn
C:when did he begin learning
D:for how long he began to learn;
正确答案是：
同类题型
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____ from his appearance, he must be from the north.
The teacher asked Mary _______ she could tell him the general idea of the poem[ ]
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