根据句子意思，用括号内所给单词的正确形式填空。
【小题1】Our classroom is on the _________(three) floor of the tall building.
【小题2】Some _________(child) are dancing under the tall tree. They are happy.
【小题3】The boy speaks _________(Japan) very well because he comes from Japan.
【小题4】—Would you like to go _________(swim) with us?
—Yes, I’d love to.
【小题5】Jim often_________(watch) TV in his living room in the evening.

Jim often goes to school _____ bike. But today he goes to school _____ the school bus. 

     A. on, by   B. by, by   C. by, on   D. on, on

Jim often has lunch at school.          he eats at home today.

A. But        B. Sometimes         C. And         D. Always