---Will you read me a story, Mummy?
--- OK. You_______have one if you go to bed as soon as possible.

I ________worry about my weekend—I always have my plans ready before it comes.

I ______ the poor rabbit, but I didn’t have the right drugs with me at that moment.

The school rules state that no child _____ out of the school, unless accompanied by an adult.

Tom, you ________ leave all your clothes on the floor like this next time. 

---Where is my pen?
--- I _____it.

—Shall I inform him of the change of the schedule right now?
—I am afraid you       , in case he comes late for the meeting.

It’s said that there are plenty of hotels in that town. There ______ be any difficulty for you to find somewhere to stay.

As everyone knows, rubbish           everywhere.
A. need be thrown      
B. mustn’t be thrown      
C. can’t throw            

There are no customers in the hotel. It ______ have the friendliest service.
A. can’t              B. must                    C. may