问题
选择题
— I don't know _____ to do with this physics problem. It's too hard.
— You can ask your teacher for help. [ ]
A. how
B. what
C. which
答案
答案：B
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— I don't know _____ to do with this physics problem. It's too hard.
— You can ask your teacher for help. [ ]
A. how
B. what
C. which
答案：B