阅读下列短文，从每题所给的四个选项（A、B、C、和D）中，选出最佳选项，并在答题卡上将该项涂黑。

A

　　Acrobatic(杂技的) Show in Haidian Theatre Beijing

　　Introduction of the Show：

　　This is the entertainment that should not be missed by the young and old on a visit to Beijing. You can see breath-holding acrobatics, some of which can be so 　　demanding in the balance skill as to be close to the impossible.

　　This time you can see the bicycling show—ten cycling girls all ending up on a bicycle with their fans spread out like a peacock. There are also girls bending and folding their bodies to a position where the feet hold the face and the head and hands are still balancing some glasses. Other exciting acts are the martial arts(武术), balancing of bowls, rope walking, pole climbing, roller skating and plate swirling(转碟子), etc.

　　Ticket Prices

　　Two daily acrobatic shows from 5:15 pm to 7:15 pm. The detailed price is as follows (including 5-65 years old):

　　Yellow Zone：(Mid Rows 14-23) RMB 120

　　Blue Zone：(Mid Rows 1-4）RMB 160

　　Green Zone：(Mid Rows 8-13) RMB 220

　　Red VIP Zone：(Mid Rows 5-7) RMB 400

　　Booking

　　Book at Beijing-travels. com or call 13801067568

　　Booking information：Your Name, Shows, Date, Time, Tickets, Telephone Number. We will explain your enquiry(咨询) or confirm booking within one working day. When your booking is confirmed, you will receive a confirmation letter by e-mail, which includes the detailed tickets with prices.

　　Payment

　　Please pay cash to our clerks when you get to the theater. Both RMB and US dollar are acceptable.

21．What can we infer from the passage above？

A．Only children would like to watch it.

B．It will include the bicycling show by a peacock.

C．It will be shown only twice.

D．It will be performed by highly-skilled acrobatic group.

22．If a couple with their 4-year-old child want to sit in Row 6, they should pay ________.

A．800 yuan 　　　　　　　B．660 yuan

C．240 yuan　　　　　　　 D．320 yuan

23．What is the main idea of this passage？

A．The ways to book acrobatic show tickets.

B．The popularity of acrobatic shows in Beijing.

C．An advert for Beijing Acrobatic Show.

D．The introduction of Chinese acrobatic.