When I was young，my parents taught me ___________ older people kindly.（ ）
A．treatsB．to treatC．treatedD．treat
﹣﹣﹣How do you usually go to school？
﹣﹣﹣I to school on foot．（ ）
A．goB．wentC．was goingD．will go
﹣﹣﹣ I hand in the report today？
﹣﹣﹣No，you needn't．（ ）
A．CanB．MustC．ShallD．Could
The hotel is very old．It's one of buildings in the city．（ ）
A．oldB．olderC．oldestD．the oldest
﹣﹣﹣ did you stop playing？
﹣﹣﹣Because I was tired．（ ）
A．HowB．WhyC．WhenD．Where
More and more young people go skating winter．（ ）
A．atB．inC．onD．to