1. We are in Grade 7. (就画线部分提问)
    ________   ________  are you________?
2. Her skateboard isn't the same as his. (改为同义句)
    Her skateboard ________ ________ ________ his.
3.  Mary is as old as Kate. (改为同义句)
     Mary has ________ ________ age ________Kate.
4.  We exercise every day for keeping healthy.  (改为同义句)
    We exercise every day for keeping ________  ________  ________.
5.  Must I finish my work?
   ________, _________, _________.(作肯定回答)
    ________, _________, ________.(作否定回答)