It's half past nine. Mrs. Green is on the sofa in the living room. Her daughter Cindy is (shop) with her friend in the supermarket. She says she can get home before nine, but she still get home now. Mrs. Green (call) her, but no one answers(接).
Tony walks out of his room and asks, " don't you go to bed, Mom？"Mrs. Green says, "Oh, your sister is still outside and doesn't get home. So I can't go to bed. "Tony goes back to his room and (study) for a math test.
"Tony is a good boy. He is good math, "Mrs. Green thinks. Then Mrs. Green gets a call from Cindy. Mrs. Green says, "I'm so happy to get your call. No, don't (take) the bus. Wait for(等待) me in the supermarket your friend. I'll come and drive you home. "Mrs. Green goes out (quick), and then she (drive) her car to the supermarket.
