When do you start to work?为什么要加to?

When do you start to work?为什么要加to? do you start to do know start you to when 连词成句啊 what are the things do you consider when you start to look for a job? when did you start to learn english? 英语翻译When I hear the bird start singing I wanna see you Hoo,hoo,do do do do do...When I see the leaves start fallin' I wanna see you The only thong I'll do Don't you know Is to rush and run to you When I hear the clock start tiching I start to Do you start to work?怎么回答 what will you do when you start work回答 When you meet a person and do not know what to start a conversation,you may say. when you start to grow up 还是 when you start growing up when did you start your homeworki________it until 10p.m.i think i_______hardly finish it today.A.started to do;can'tB.didn'tstart to do;can'tC.started to do;can D.didn't start to do;can when do you start your classes什么意思 your,lessons,you,start,do,when.连词成句 Do you know when _______（start） for the trip? Do you know when ____(start)?Eight o'clock. 同义句转换：Do you know when we should start?Do you know when ( ) ( ) you can start your j___ when you want to,and. When do you go to