问题
You can use MSN to talk with your friend on the Internet. -I know. But can you tell me_______?
A:what I can use it
B:how can I use it
C:why can I use it
D:when I can use it
B:how can I use it
C:why can I use it
D:when I can use it
正确答案是：
同类题型
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