http://www.tudou.com/v/ZaZht36XBmI

the most expensive 最贵的

in the shop

cost

be worth

He is the most handsome boy in our class.他是我们班最帅的男孩

It's as good as the expensive one.

I''m not as fat as he.

buy sth. on instalments 以分期付款方式购买

Can we buy the house on instalments?

fourteen pounds a month

fourteen pounds two months

the best 最好的 good(well） better best

millionaire

This test is more difficult.

That'sthe least interesting book I have ever read.