[解析]
13.B 14.C 15.A 16.А M:Hi,Jane.Did you buy some new shoes?
W:Hi,Carl.Yeah,I'm taking dancing classes and I need new dancing shoes.
M:Where are the classes?
W:At the local community center.I'm really enjoying it.
M:What kind of dance are you learning?
W:We're learning a few different types of dance.So far,we have learned ballet,modern,and tap.Of all the types,tap dance is my favorite.Ballet is pretty hard.
M:Sounds like a lot of fun.My sister Shelley is thinking of joining you in your class,but I fear it's already full.Besides,she fears she may be too old to learn dance lessons.She's fifteen,though.
W:No,our class isn't full.You can schedule a time for her to come to one of our classes.The first visit is free.We have our lessons every Monday evening at 7 pm.
M:OK.I'll ask her to go next Monday.Please help her a bit.She's a terrible dancer.
W:Me too.That's why I'm taking lessons.