问题
选择题
We want to know _______ to help them. [ ]
A. what can we do
B. what we can do
C. how can we do
D. how we can do
答案
答案：B
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We want to know _______ to help them. [ ]
A. what can we do
B. what we can do
C. how can we do
D. how we can do
答案：B