W: Kevin, You are having another cup of coffee? That’s your third since lunch.
M: Yeah. Well, I stayed up all night reviewing for my history exam. I couldn’t keep my eyes open in my last class. I’m having this coffee so I can stay awake this afternoon.
W: Don’t you know that drinking too much coffee is harmful?
M: What do you mean harmful?
W: Well, for one thing it may cause heart disease.
M1) _________________________________________________________. The conclusion is not so definite.
W: But coffee has caffeine, which is addictive.
M: You can’t become addicted to caffeine like other drugs.
W: En, you can. (2)_______________________________________________________?
M: One cure for headaches, oddly enough, is caffeine. Haven’t you ever noticed that many drugs for curing headache use caffeine as one of their ingredients? Besides, coffee helps me work faster.
W: Studies have shown that coffee makes you work faster but not necessarily better. You may finish your exam in a shorter period of time but you won’t have fewer errors.
M: You know, that Coca-Cola you are drinking has caffeine in it too.
W3) _______________________________________. And a cup of tea has less than that.
M: But I like the taste of coffee.
W: You could drink decaf, which has much less caffeine.
M: Decaf doesn’t have as much flavor as regular coffee. Besides I want something that will keep me alert in class.
W: Well, you are stubborn.
1) _________________________________________________________. The conclusion is not so definite.