用所给词的正确形式填空。
【小题1】They visited “The World of Robots” on the __________ (two) floor.
【小题2】Alice is good at dancing. She is a good __________ (dance).
【小题3】Peter __________ (buy) a model plane yesterday.
【小题4】He __________ (can) eat five hamburgers a day ten years ago.
【小题5】Horses can run very __________ (fast).

将下列基数词变为序数词。
【小题1】one _______
【小题2】two _______
【小题3】three _______
【小题4】four _______
【小题5】five _______

选出不同类的一项：（  ）

A．tigers

B．two

C．elephants

Read and write“T” or “F”： Seven three four one.  （______）

There are _______seasons in a year. （    ）

A．four

B．fourth

C．seven