按规律填数字。
1.one，two，three，four，____
2.one，three，five，seven，____
3.one，two，four，five，seven，____
4.ten，nine，eight，____

Miss Li is my ______ Chinese teacher. (   )

A．one

B．first

C．the first

Look and write（根据图意，写出合适的单词完成句子）
【小题1】This is my friend Kelly from the f________ floor.
【小题2】— Who’s she?   — She’s my sister. She l________ pretty flowers.
【小题3】Li Ming and Li Gang b________ like playing ping-pong.
【小题4】Look at the footballs. One is big, and one is small. They’re d________ .
【小题5】Look at this boy. He has a bicycle. He often r________ it to the park.

The ______ spaceship took a dog into space. (   )

A．one

B．first

C．once

There are _______seasons in a year. （    ）

A．four

B．fourth

C．seven