—Do you know _______ man in jeans?—Yes. He’s a professor of _______ university.

It’s ________pleasure for me to be invited to play the piano at the concert.

--- Have you ever seen _____ one-eyed elephant ?--- No, never. And you?

I bought _______ English-Chinese dictionary. _______ dictionary is very useful.

Let’s ask John to play           piano for the party.