Miss Joan enjoyed picking apples with her students. She smiled as she led her students to the bus that would take them to the Greenly Apple Orchard （果园） .

The bus ride was bumpy and the kids were a little noisy ， but still Miss Joan was smiling.

The bus stopped in front of the Greenly Orchard Store and the class got off quickly and quietly. Miss Joan made sure everyone was there. “ What a glorious ， sunny ， apple picking day ，” Miss Joan announced with her grandest smile.

Mr. Greenly was there to greet them. “ Let me see ， there are eighteen children and two adults at three dollars each. That will be sixty dollars ， please. ”

Miss Joan held up the brochure in her hand. “ It says that the price is two dollars each ，” she pointed out. “ That ’ s what I collected from everyone. ”

“ We ’ ve had to raise the price ，” Mr. Greenly stated.

“ You sent me this brochure after we made our reservation ，” Miss Joan complained ，“ and it says two dollars ！”

“ Miss Joan ， if you look at the bottom of this brochure ，” Mr. Greenly said ，“ you ’ ll notice a very important statement. ”

Sure enough ， in very tiny letters ， it said ，“ Prices are subject to change without notice. ”

Miss Joan was determined to keep her good mood. She took a twenty dollars bill out of her own purse and handed it to Mr. Greenly with the forty dollars she had in an envelope.

“ Now children ， do you all have your baskets ？” Miss Joan called out. “ Remember ， you can pick as many apples as six apples each. ”

“ I beg your pardon ！” Miss Joan was not smiling now. “ The brochure says ，‘ ALL YOU CAN PICK ’！”

Mr. Greenly pointed to the tiniest letters Miss Joan had ever almost seen. It also says ，“ Terms and conditions of group reservations are subject to change without notice. ”

Miss Joan ’ s good mood was now history. She didn ’ t want to set a bad example for her students ， so she said in a calm and quiet voice ，“ We ’ re going home ， give me our money back ， please. ”

31. How many dollars did Miss Joan hand to Mr. Greenly ？

A. 20 B. 40 C. 60 D. 18

32. The phrase“subject to change without notice”suggests

A. Mr. Greenly could change the terms at will.

B. the customers should read the brochure carefully.

C. Mr. Greenly could determine what apples to be picked.

D. the customers should be informed beforehand.

33. The students could not pick as many apples as they would like because

A. they were children. B. there were not enough apples.

C. they had made a group reservation. D. they would eat up too many apples.

34. “ Miss Joan ’ s good mood was now history ？”（ the last paragraph ） means

A. Miss Joan had been happy until that moment.

B. Miss Joan was no longer interested in history.

C. Miss Joan taught her students the history of the orchard.