I’ve _____ all the books on the shelf, but I still can’t find the one you need.
— Would you like to sing some songs with us? — _________ I have to cook.
— May I _________ Lily? — I’m afraid you have the wrong(错误的) number.
— How about going swimming? — I’d like that, _________ I’m afraid I have no time.
— What about _________ an English song? — Good idea.
— Do you have any time this afternoon? — Yes. _________