单选题 ____ a good enough price for a used chair.

单选题 —Wasn't Joan supposed to be here by now? —____, she will be here in about twenty minutes.

单选题 —Would you mind keeping your voice down? I'm reading Harry Potter. —____. I'm sorry to bother you.

单选题 —You know what? I've got tickets for the New Year concert! —Oh, ____ You're kidding!

单选题 —The Internet is a good thing. I've met many friends on the Net. —____. Few of them would become your real friends.

单选题 —What do you think of the house? —____ It's everything we've been looking for.

单选题 —What is the distance between the two places? —____.

单选题 —Are you looking to buy a car, sir? —____.

单选题 —I am sorry I was rude to you, liz. —____, but don't do that again!