Alan: My schedule this afternoon is an absolute mess. Between 3: 30 and 4: 00 I'm supposed to be in four different places. There's no way.
Adam: I've done that before. ______

A．I really don't think
B．It's really not necessary
C．I really don't bother
D．It really doesn't matter

A．Dinner will be ready in a minute. Could I get you something to drink
Guest: ______A. No, don't trouble. I've drunk enoughB. No, you couldn't. I'm not thirstyC. Yes, please. I'd like some SpriteD. Yes, you could. I'd like some Coca cola