(1)he,come,did,from,where (2)who,you,Tv,set,know,the,do,invented(3)produce,we,our,month,will,in,about,factory,next,550,cars(4)our,divides,English,often,us,three,groups,in,class,teacher,into(连词成句）

3 We will produce 550 cars in our factory next month
4 Our English teacher often divides us into three groups in class

1. where did he come from
2.do you know who invented Tv set
3. we will produce our cars in factory about 550 next month
4.our English teacher often divides us into three groups in class