Last year I _________ drive. I used to take the bus.

— You used to 　　　　 the bus to school, didn’t you?
— Yes, I did. However, I am used to 　　　　 to school now.

—Can I borrow your ruler, please?
—Yes, you ________. But you must return it to me before lunchtime.

——Who’s the man over there?Is it Mr. Black?
——It______be him. He’s much taller.

---Dad, must we wait until the light becomes green?
---Yes, I’m afraid we ______. That’s the traffic rule.

The man in the office ____be Mr. Black because he phoned me from London just now.

This blue car ____________ be Bob’s bcause his car is black.

—–I think the man over there must be Tom.—–It _____ be him. He has ______ to America.

—Could I invite my friends to my birthday party?—Sorry, you ______.

—Must I finish the homework tonight?
—No, you        .You can finish it tomorrow.