18．thirteen + seven = __________　　　 　　　 19．fourteen + sixteen = ___________

16．four + eight = ___________　　　　　　　　　　　　 17．seven + eight= ___________

15．The blackboard is black. The words on it are ________.

14．The shirt is too big for me. Give me a ________ one, please.

13．His first name is John and his ________ name is Green.

12．Watching TV is too boring. But playing sports is very ________.

11．I think this book is very easy and that book is very ________.

10．The store sells school things. You can ________ some coloured pencils there.

9．My shoes are too old. I want to buy ________ ones.

8．I like short hair. I don’t like ________ hair.