– I can’t give up smoking, doctor.– For your health, I’m afraid you _______.A. may B. can C. have to
If the green light isn’t on, ________ a minute.
I’m very tired, Let’s stop ________ a rest.
He doesn’t know ________ they will plant trees on Saturday or not.
Hobbies can make us ________ as a person.
The drink is ________ delicious ________ I enjoy it very much.