Tìm lỗi sai và sửa lại cho đúng

1) these tables is very heavy.he couldn't move them
2) the programme is very long .they can't broadcast it
3) you look very tired. you can't walk home
4) the river is very cold . we can't have a swim
5) the suitcases were small. Peter couldn't put all his clothes in them
6) he was short . he couldn't be a goalkeeper