阅读理解。

1. From the poster (海报),  Who can go to the youth club? [ ]

A.  An 8-year-old boy

B. An 18-year-old boy

C. An 18-year-old girl

D. A 16-year-old girl

2. If you go there every weekend, how much will it cost you a month?[ ]

A. ￡2.50

B. ￡5.00

C. ￡10.00

D. ￡20.00

3. Where can you find this poster? [ ]

A. In a history book.

B.  In a math book.

C. On the Internet.

D. In a science book.

4. When can you go to the club? [ ]

A. Sunday.

B. Tuesday.

C. Monday.

D. Friday.

5. We else can call the number ______ and join the club [ ]

A. 49638527

B. 49638257

C. 49368257

D. 49638657

安全生产管理实行（）的原则。