----Listen! Is Kitty in the next room? ---- No, it ______ be Kitty. She has gone to Beijing.

When I was your age, I dared not go out alone at night, ________ you?

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

I am feeling sick now．I ________ so much chocolate．

— __________ we leave the library before 5 o’clock?— No, you needn’t. You can stay here until 5:30.