41．If you want to learn Latin dance，you're expected to　　．

A．join them as early as possible

B．have classes in the morning

C．book your place at any time

D．attend classes on weekends

42．How much will you at least pay for living in that room half a year in Notice B？　　

A.250

B.500

C.1000

D.1500

43．Which of the following about the cat isn't mentioned in Notice C？　　

A．Size

B．Colour

C．Hobby

D．Missing place．