问题
选择题
I'm sorry I didn't tell you _______. [ ]
A. how you to do it
B. what to do
C. how can you do it
D. how you can do it
答案
答案：B
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I'm sorry I didn't tell you _______. [ ]
A. how you to do it
B. what to do
C. how can you do it
D. how you can do it
答案：B