When Tom was sleeping,a thief broke into his house

问题描述:

When Tom was sleeping,a thief broke into his house
1 请问这句话语法正确吗?2 when 引导的是主语还是从句啊?3 如果换成while应该是什么样的句型,请详细一点,

1.这句话错了,应该这样说:Tom was sleeping when a thief broke into his house2.when引导的是时间状语从句,如果一个复合句中句子没有逗号,前面主句后面从句,如果一个复合句有逗号,前面从句后面主句.另引导词when,w...