5. Being monitor,you should perform your duty.

3. Tom's father ordered him to leave at once.

4. Your order will be delivered for free within a ten- mile limit.

II.用本單元的詞匯替換畫線部分

1. Mary has no choice but to wait.

2. You should learn to remove your bad habit.

8. All forms of (娛樂活動) are provided in this club.

7. Police will (逮捕) criminals by firing nets instead of guns in the future.

6. We will use lots of recycled (材料) ，such as plastic,aluminium,steel,glass,wood and paper.

5. Doctors can carry out (手術(shù)) from thousands of miles away.

4. He doesn’t like (都市的) life,so he will go to the country after he retires.

3. I still think travelling around the world alone is (冒險的) .

2. In the future,all shopping will be done (在線上) .