1. B)根据句意及括号内所给单词的提示填空。

1. （1） That is my ruler. (that) are your rulers.
3. （2） Are these your (grandparent), Sally'?
5. （3） This is a jacket and it (be) blue.
7. （4） The three (girl) are my friends.
9. （5） We have good (day) here.