阅读下面语篇，从各小题所给的A、B、C三个选项中，选出最佳选项。
I always go to school by bus. I usually ______ the No.7 bus. The traffic is often ______ with lots of buses, cars and all kinds of trucks. When I ______ the bus, I always move to the back to make room for new passengers. I ______ sit in courtesy seats. Because they are for old people, small children, pregnant women or people with disabilities. I always ______ the volume (音量) of my smartphone when I get on the bus so that I won’t disturb others.
Many young people wear backpacks (背包). They don’t take ______ off even when there are not many passengers on the bus. When a mother ______ a baby gets on the bus, somebody stands up to offer them a ______. Sometimes the bus driver tells the passengers not to ______ their things on the bus. If there are some noisy people on the bus, the driver will ______ them not to speak loudly.
As students, we should set a good example to the passengers. What do you think of my idea?
【小题1】【小题2】| A．expensive | B．light | C．heavy |
【小题3】| A．get up | B．get on | C．get off |
【小题4】【小题5】| A．turn up | B．turn down | C．take turn |
【小题6】【小题7】【小题8】【小题9】【小题10】
