enlist|enlisted|enlisting

她决定毕业后自愿参军。

She decided to ___enlist in the military after graduation.

他决定参军，所以主动应征入伍了。

He decided to join the army, so he ___enlisted voluntarily.

海军正在招募新兵，许多年轻人响应号召报名。

The navy is ___enlisting new sailors, and many young people are answering the call.