这些句子对吗,不对改正啊!

问题描述:

这些句子对吗,不对改正啊!
1.These cup are clean.2.There is a box in the floor.
3.There is a knife and a fork on the plste.
4.Are there some magazines on the TV set?

2 in 改为 on
4 some改为any
其余对