用适当的介词填空,完成下列句子
1.It‘s time （ ）supper
2.They play （ ）the computer
3.The shoes are （ ） the bed
4.Listen （）the teacher
5.I do my homework （ ）supper
6.He is talking （ ）Tom on the phone
7.This is the way we write （ ）mum
8.These nice dresses are （ ）my mum