题目内容
I don't know ________.
A. how can I use it
B. how to use it
C. what I can use it
D. what to use it
答案：B
练习册系列答案
相关题目
题目内容
I don't know ________.
A. how can I use it
B. how to use it
C. what I can use it
D. what to use it
ri/ about me. I am fine. 
pt/ her handbag in the symphony hall yesterday. 
nist / boy, isn't he?
n'tinju:/ their education after middle school.