If you want to have a hot bath, you should pay ________ money.—- You mean the fee of hot baths is not ________ in the hotel price?
How old is the baby boy?——He is an ________ boy.
her books? –They are in her bag.
Excuse me, Mum. When can we have dinner?—Not until it in half an hour.
Do you think a radio is useful in learning English? —Sure. A radio can _____ listening English songs and reports.