My father is a worker． is very kind．（　　）

A．HeB．SheC．HisD．It

More and more young people go skating winter．（　　）

A．atB．inC．onD．to

﹣﹣﹣ did you stop playing？

﹣﹣﹣Because I was tired．（　　）

A．HowB．WhyC．WhenD．Where

The hotel is very old．It's one of buildings in the city．（　　）

A．oldB．olderC．oldestD．the oldest

﹣﹣﹣ I hand in the report today？

﹣﹣﹣No，you needn't．（　　）

A．CanB．MustC．ShallD．Could