问题描述：
一道英语题,关于how 和what
I really don't know _____. Could you give me a hand? I'll appreciate you.
A.how to do with this thing.
B.what i should do with this thing
很想知道为什么选B,不选A
I really don't know _____. Could you give me a hand? I'll appreciate you.
A.how to do with this thing.
B.what i should do with this thing
很想知道为什么选B,不选A
问题解答：
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