与粗出生率计算公式分母相同的指标是（）。

A.婴儿死亡率

B.新生儿死亡率

C.粗死亡率

D.总生育率

E.生存率

句型转换。

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)