start 和work之间要不要加to ?

start 和work之间要不要加to ? When do you start to work?为什么要加to? she came to China to work in 2008 China和work之she came to China to work in 2008 China和work之间不是加of吗?为什么要加to I like to learn about Chinese history learn和about之间要不要加something之类的 he is going to start when he finish high school and college的finish要不要加es呢 he is going to start when he finish high school and college的finish要不要加es she is too young to find -----（ 工作 ） 用work还是job ,要不要加a It was really___hard work to fight this kind of disease横线处要不要加冠词? These help him start the day.这句话对吗?start要不要加s? hope 要不要加to, 书名号之间要不要加顿号? before dinner 之间要不要加the? work意为作品的时候要不要加复数? Where does your mother work?work要不要加s what is your mother's work?work要不要加s 句子中的伴随状语要不要和主句之间加逗号 in music clud in和music之间要不要加the 书名号和书名号之间、双引号和双引号之间要不要加顿号15分钟之内答+15 why not后面要不要加to