6. They plan to invite him for dinner tonight
=> They are.........
7. Remember to wait for me tomorrow
=> Don't..................
8. You should stay in bed
=> You ought...................
9. There is a telephone in her room
=> Her room................................
10. To leave medicine around the house isn't safe
=> It's.............................
They are going to invite him for dinner tonight
Don't forget to wait for me tomorrow
You ought to stay in bed
Her room has a telephone
It is not safe to leave medicine around the house.