D Look, choose and write
　　　　　　　　
　　in on by under behind

Class is over. Bobby and Sam play outside. Sam is ________________ the table. Bobby is ________________ the tree.
　Sam: Is that your book, Bobby? It's ________________ the table.

Bobby: Yes, it is. Thank you.
　Sam: Oh, that is my schoolbag! It's ________________ the table.

Bobby: Look! A ball is ________________ the flowers. Where's my
　　　　paper plane?
　Sam: Ha ha! It's ________________ the tree.

Bobby: Ah! A bird is ________________ the tree too.