The child has lots of toy to play with.为什么要加with`

The child has lots of toy to play with.为什么要加with` He has no time to play with the child today.(同义句） play with the toy还是play the toy?play with the water/fire还是pl look Jack play with the toy car 句型转换The boy wants to find a toy which he could play with.The 1 .Look My sister _is playing________ ( play ) with the toy It is dangerous to play with fire.为什么加with为什么play basketball These kids want to play chess with you .中的play要加ing吗?为什么? I can't go to play with you because I have lots of homework 比如play with water是“玩水”的意思,为什么不加the?而I want to buy a car with 高中英语题：介词A child likes to play with the children __.A. for hi The child ( )not to play with fire.A.are toid B.tell C.are a