When Tom was sleeping,a thief broke into his house1 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,

When was Tom born?的同义句 When was Tom born 改为同义句 When is Someone---at the door when Tom was having his supper? Tom started____(play)computer games when he was very young Tom taught ________(he) Chinese when he was a child. tom taught__(he)chinese when he was a child How was Tom when he got the.preaent的中文 the students were listening carefully( )into the classroomA.when Tom rushed B.when Tom was rushingC.while Tom rushed D.while Tom was rushing When he was thirty,Tom moved to Lundon.At the ___ ____thirty ,Tom moved to Lundon. Mary was smiling when she read Tom's report.Mary was ＿＿ ＿＿ Tom's report. 下面两个句子哪一个正确?I met Tom while I was shopping.I met Tom when I was shopping. -When was Tom born?--He was born ______December 10th,1968. Everyone except Tom and John was there when the meetin began.把 was 换成 were Tom ___________into the house when no one _______1.slipped ,was looking2.was slipping ,looked tom was( )(surf)the internet when there was a fire.适当形式. When the bell____(ring),Tom was dressing.为什么填rang而不填was ringing呢? tom was very interested in jobs that some people had when he was young 怎么 showed interest in math when he was young ,同义句转换：Tom（）（）（） math when he was young.