(Alex meets Cindy at school on Monday morning. )

A: Hi, Cindy! How was your weekend?

B: Awful. You know, Alex, I was busy. taking after -school classes

at the weekend.

A: Great! I went to the Science Museum and had a lot of fun there. Have you ever been there before?

B:I do nothing but study all the time at weekends.

A: That sounds bad. You should relax yourself at weekends. And you can try something new instead.

B:By the way, can you tell me something about the museum?

A: It's hard to say...You'd better visit it if you're free.

B: Oh, it must be a great way to spend weekends. Could you please go with me next Sunday afternoon?

A: No problem. Let's make it.

B: Catch you.

一 You' re right. Everyone should be a greener person.

一 I think it is the top one in _________________ world.

    The B&.O Railroad Museum is in Baltimore. Its site is1to be the birthplace of the American railroad. The museum2the most complete railroad collections in3. On the second floor, there is an 4of station clocks, and a small movie theatre. The museum also has an 5collection of engines, cars, cranes and6railroad equipment.

7the winter of 2002- 2003， heavy8destroyed the roof of the museum and damaged more than half of the9, which may have been the museum's10loss. But there was still some11the insurance(保险) on the museum, though it wasn't clear at first12it would get from that.

    The museum was very13. In the end, although it had14millions of dollars, all of it was replaced by the insurance. The museum had been15until November 2004. Its manager says, "The insurance saved our museum!"