问题
选择题
It’s their duty for the soldiers our country our enemies.
A．to prevent; from
B．to keep; from
C．to protect; from
D．to stop; from
答案
答案：C
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It’s their duty for the soldiers our country our enemies.
A．to prevent; from
B．to keep; from
C．to protect; from
D．to stop; from
答案：C
