问题
选择题
The idea they have come up with sounds great, but it remains whether it works well in practice．
A．to see
B．to be seen
C．seeing
D．seen
答案
答案：B
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The idea they have come up with sounds great, but it remains whether it works well in practice．
A．to see
B．to be seen
C．seeing
D．seen
答案：B