那个男孩因为偷手机被警察逮捕了。

The boy was arrested for ___stealing a cellphone.

小偷悄悄溜进房间，没人注意到他。

The thief was ___sneaking into the room without being noticed.

那个学生被抓住剽窃其他同学的文章来赢得比赛。

The student was caught ___stealing another classmate's essay to win the competition.