问题
选择题
There are many cars coming up and down. If you insist on standing there, you will risk _________ down on the ground.
A．knocking
B．to knock
C．being knocked
D．knocked
答案
答案：C
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There are many cars coming up and down. If you insist on standing there, you will risk _________ down on the ground.
A．knocking
B．to knock
C．being knocked
D．knocked
答案：C