1. 选词填空。

now    then    is    was    are    were

1. （1） — he strong then?

   —Yes, he .

3. （2） —Where he now?

   —He at school.

5. （3） — you at home yesterday?

   —Yes, I .

7. （4） —Shenzhen wasn't big .

   —It is a big city .