1、The TV is interesting.
（ How ）interesting the TV play is!
2、You bought cheap potatoes.
( What )cheap potates you bought!
3、It's a very expensive coat.
( How )expensive the coat is!
4、He works hard!
( How )hard he works!
5、It's a beautiful city.
( What a )beautiful city it is!
6、She's a clever girl.
( How )clever the girl is!
7、It's an interesting film.
( How )interesting【the】 film is!
8、The boy is running very fast.
( How )fast the boy is running!
9、It is bad weather.
( What )bad weather it is!