问题
选择题
My sister bought me a new camera. I don't know ______. Can you help me? [ ]
A. how to use it
B. how to use
C. what to use
D. what to use it
答案
答案：A
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My sister bought me a new camera. I don't know ______. Can you help me? [ ]
A. how to use it
B. how to use
C. what to use
D. what to use it
答案：A