Lunch is usually served between noon and 2：00. Sandwiches are a very popular quick lunch in both the United States and Canada.
午餐通常从中午供应到下午两点。 在美国和加拿大， 三明治是极大众化的午间快餐食品。
1.A： Please have another sandwich.
B： Thank you， but I really can't eat any more.
A： You're going to have dessert， aren't you？
B： Well， I'll join you if you're having something.
2.A： You'll finish the chicken， won't you？
B： No， thank you. I'm trying to cut down.
A： Aren't you going to have dessert？
B： No， thank you. I just can't eat any more.
3.A： Would you like some more soup？
B： No， thank you. It's delicious， but I've had enough.
A： Would you like soem dessert？
B： Well， maybe I'll have just a small piece of pie.
4.A： Can't you eat the rest of the salad？
B： No， thanks. I'm supposed to be on a diet.
A： Why don't we have something for dessert？
B： I really shouldn't， but I'll have a little ice cream.