15. B。根据上文，消费者关心的是质量。因此电话购物公司必须对质量倍加小心。故选择quality。
C
Last Friday,
after doing all the family shopping in the town. I wanted to have a rest before
catching the rain. I __1__ a newspaper and some chocolate and __2__
into the station coffee shop. It was a cheap self-service place with long
tables to __3__ at. I put my heavy bag down on the floor, __4__
the newspaper and the chocolate on the table and then went to get a cup of
coffee.
When I came back
with the coffee, There was someone __5__ in the next seat. __6__
was a boy, with dark glasses and old clothes, and __7__ bright red at
the front. He had started to eat my chocolate!
Naturally, I was
rather uneasy about him, but I didn’t want to have any __8__. I just
read the newspaper, tasted my coffee and took a bit of chocolate. The boy
looked at me in __9__.Then he took a __10__ piece of my
chocolate. I could hardly believe it. Still I didn’t say anything to him. When
he took a third piece, I felt more angry than uneasy. I thought, “Well, I shall
have the last piece.” And I got it.
The boy gave me
a strange look, then __11__ up. As he left, he shouted out, “There’s
something __12__ with that woman!” Everyone looked at me, __13__
I didn’t want to quarrel with the boy, so I kept quiet. I did not realize that
I had __14__ a mistake until I finished my coffee and was ready to __15__.
My face turned red when I saw my unopened chocolate under the newspaper. The
chocolate that I had been eating was the boy’s!