1. I lose the key, so I cannot get into the house.
-> If ___________________________________________
2. They are too young to join the army.
-> They are not _______________________________
3. She won't come unless you invite her
-> If ___________________________________________
4. We can't hang the picture on the wall. It is heavy.
-> The picture ________________________________
5. They  were tired. They were hungry.
-> They were not only __________________________
6. They finish their work. They went home.
-> Finishing ____________________________________
7. She goes out in the rain. She gets wet.
-> If ___________________________________________
8. Tom can't lift the table. He isn't strong enough.
-> Tom is _____________________________________