A、Avoid junk food. B、Attend monthly meetings. C、Buy cleaning supplies at the co - up. D、Work at the co - up. D文中提到会员义务有几点：交会费，出席

A: How do you and your housemates like the co - up? I’ m thinking of joining it myself.
B: We like it quite a bit. We get some very fresh produce. And both staples and fair prices. But it certainly hasn’t saved us time. The co - up doesn’t carry everything. So we still wind up going to the supermarket too, for cleaning supplies, batteries, that sort of thing. I wish the co - up solved those items. ]’ ye been talking about it with some of the other members.
A: What do members have to do.’? Just to pay a membership fee?
B: Yeah. There is a fee, and there are meetings. But attend ance isn’t required. But we do have to work there for an hour every week, which isn’t too bad. Once you are there, you can get your shopping done.
A: I wouldn’t mind working there some time. You get to learn about the products. But is the food free of additives? That will be the main reason I join. I’ m a convert from junk food. Until now my diets have been largely chemical additives and pesticides. B: Well, a lot of food is pure and pesticides - free. They also have ultamine supplements and soy and Toufu and that kind of thing, lots of health food in shop there. So if source health oriented, the co- up is.
A: I’d like to try it just for a month or so. Then if you like it, you can join for a longer periods. And it becomes cheaper. A six month membership costs as much as 5 individual months.
B: Sounds pretty easy. Maybe the next time I run into you a gain, it will be in the checkout line in the co -up.