Fill in can, need, must or should
1. It's top secret. You ……………. not tell anybody else.
2. Rome is a wonderful city. You …………….. go there, too.
3. I watered the plants yesterday. You ……………. not water them today.
4. ……………… I offer you a seat? Yes, that's very kind of you. .
5.You …………….. have a passport to visit foreign countries.