句型转换。

1.  His father is going to Shenzhen by plane.  (改为同义句)

     His father is ________a plane to Shenzhen.

     His father is going to Shenzhen ________  ________plane.

2. My sister goes to work by bike every day. (改为同义句)

    My sister goes to work ________ ________  bike every day.

    My sister________  a bike to work every day.

3. Most students in our class walk to school every day.

    Most students in our class go to school ________ ________every day.

4. She spends about forty minutes getting to school by bus.  (改为同义句)

    It ________ ___________ about forty minutes___________ ___________ to school by bus.

5. Mrs liu goes to work by taxi every day. (就画线部分提问)

   ___________  ___________ Mrs Liu ___________ to work every day?

作业场所的噪声标准？