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

— ____ you sing the English song?— Yes, I can.

The police still haven’t found her, but they’re doing all they      .

My father doesn’t have much money. I don’t have, ____. 

 —Listen! Is that Pingping playing the guitar?  —No. It __________be Pingping. He has gone to Beijing.