5. Are these_________ (she) jackets?

3. Is that_________ (I) map?

4. Those_________ (be) my red cups.

40. Many animals are    (lose) their homes.

39. Please remember    (follow)  the rules when you are at school.

 1.They are my_________ (parent).

2. _______ (this) are my keys.

38. This cup is    (make) of ivory.

37. Elephants never get    (lose).

36. Dolphins are    (friend)   to   us.

②This is his book.(改為復(fù)數(shù)句）
             their books.

35. They have many_(美麗的）flowers.