问题
选择题
I don't know ______ with these books.[ ]
A. how I should do
B. what I should do
C. what should I do
D. how should I do
答案
答案：B
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I don't know ______ with these books.[ ]
A. how I should do
B. what I should do
C. what should I do
D. how should I do
答案：B