two的序数词是 .  (   )

A．twost

B．twoth

C．second

将下列字母组成单词, 并翻译。
1. t t h e n ________ (    )
2. i h g e t h ________ (    )
3. s t h i x ________ (    ) 
4. t i n h n ________ (    )
5. s v t n e e h ________ (    )

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).

读一读，找出每组中不同类的单词。
（_______） 1. A. sixth B. seven C. fifth   
（_______） 2. A. Monday B. January C. March

当你想知道对方之前是否在一楼时，你可以怎么说？(  )

A．Were you on the second floor?

B．Were you on the first floor?