英语问题！十万火急！！！！！

第一个：The teacher keep Jack standing there.老师让Jack 一直站在这里
第二个：His mother wants to keep him to do excercise.他的妈妈想让他坚持锻炼。
第三个：The man wants to keep the thief from escaping.那个男人想阻止小偷逃跑。
就这样，希望对楼主有帮助。
晓篱 敬上

Keep sb. Doing sth. 一直做某事
It was very thoughtless of you to keep her waiting so long.你让她等那麽久也太不体谅人了。
Keep sb. To do sth. 坚持做某事
The teacher had to keep after her pupils to do their homework neatly.教师一再嘱咐她的学生要把作业写整齐
keep sb. from doing sth. 阻止某人做某事
They should try to keep prices from rising. 他们应该设法阻止价钱上涨

The teacher kept Jhon doing homework all day.那个老师让Jhon做了一整天的家庭作业。
Allice kept herself to do exercise every day.爱丽丝每天坚持做运动。
My mother kept my young brother from surfing the Internet.我的母亲不让我的弟弟去上网。

You keep interrupting me .
你老是打扰我。
They required me to keep silent.
他们要求我保持沉默。
The church bells keep me from sleeping.
教堂的钟声吵得我睡不着觉。

i keep sally doing honework
mom keeps me to singing
parents keep kid from piaying games