阅读下列短文，从每题所给的选项A 、B 、C 、D 中选出最佳选项。

1. The zoo opens                  a week.

A. two days        

B. five days        

C. six days    

D. seven days

2. On Tuesday,the zoo closes at                   .

A. 5:30 p.m.   

B. 6:00 p.m.    

C. 6:30 a.m.

D. 8:30 a.m.

3. On Wednesday,the zoo is open for                 .

A. 8 hours          

B. 8.5 hours        

C. 9 hours    

D. 9.5 hours

4. The zoo is in the city called                  .

A. Xiaohe          

B. Binhai          

C. Changchun  

D. Beibei

5. Beibei is 11 years old, and this Sunday she wants to visit the zoo with her parents.

    How much should they pay for the tickets?

A. ￥20.    

B. ￥30.   

C. ￥40. 

D. ￥50.