Fill in the gaps with modal verbs or their equivalents.

1. The doctor said, “The child is very ill. He ____ be taken to the hospital at once.
2. Everybody _________ learn a foreign language.
3. When I was young, I ___________ run for miles.
4. Yesterday I stayed at home because I __________ to help my father.
5. I’m sorry I’m late. _____ I come in?
6. Her English is very poor, she ____ study very hard.