Can you guess _______ the new Nike sports shoes—Yes, maybe he asked his grandpa for the money, I think.

She sat at the desk and set about _____ aletter to her friend.

(2011·江西高考)It ________be the postman at the door.It’s only six o’clock.

I’ve got many books on Chinese food. You can borrow _____ if you like.

下列各句中，没有语病的一句是