______books aren’t old.______ are new.

 —I prefer speaking to listening in English learning.—Oh, really! I think you should be good at _____of them.

-Could you lend me a pen?-Of course. Here are two and you can take____of them.

—I’m Bob. What’s your name?—Mary. How are you?

—How many computers are there in the room?—__________. Some workers moved them to another place just now.