A、August 8th. B、September 9th. C、July 10th. D、November 11th. B对话中提到搅拌器的保修时间是六个月，于3月10日购买的，保修的最后日期是明天，因此可得出今天是9月9日，故B 为本题答案。

W: Dad says we should make a wish list for the redecorating.
M: The kitchen walls could really do with a lick of paint.
W: Yeah, there are quite a few tomato stains from all your great Italian cooking, Tim!
M: Art comes at a price, you know.
W: Yes, chef. Well, I think a power-shower would be fantastic.
M: (22)There’s nothing really wrong with the one we’ve got, is there?
W: Well, I suppose it works OK. But it doesn’t match the style of our bathroom.
M: Who cares? We only need a shower. What’s more, doesn’t the power-shower use more energy?
W: OK, let’s talk about it later.
M: So what else do you want to have on the wish list?
W: How about a dish washer? I’m far too sick of washing dishes after every meal every day. Besides, I have a lot of other housework to do.
M: Everybody in this family has to share the chores; it’s a rule, you know. (23)Anyway, I think a dish washer may be a good idea; at least it won’t spill the water on the floor everywhere.
W: Hey, don’t try my patience. You didn’t do any better than me. Last time when I had a fever, you offered to help, and you broke two plates. Don’t you remember?
M: OK, I’m sorry. Oh, I nearly forgot that there is something wrong with the blender. The motor in it doesn’t work. We need to buy a new one.
W: Don’t we have a free repair? How long is the guarantee time?
M: (24) Six months. And we bought it in March 7th, or 8th...
W: No, March 10th. Here is the receipt. And tomorrow is the deadline. We must hurry, or we will lose another 120 dollars.