… two, three, ______, five, six …(    )

A．four

B．seven

C．ten

选出不同类的一项：（  ）

A．tigers

B．two

C．elephants

______ and twelve is ninety. ( )

A．Seventy

B．Seventy-two

C．Seventy-eight

写数字。
【小题1】七十___________
【小题2】七十二___________
【小题3】七十三___________
【小题4】七十五___________
【小题5】七十四___________
【小题6】八十___________
【小题7】八十三___________
【小题8】八十七___________
【小题9】八十八 ___________
【小题10】八十九___________

根据提示完成句子。
1. There are ________________ (20把椅子) in the classroom. 
2. The pencil box is ________ the desk. (在···上)
3. Steven is drawing on the ________.
4. ________ name is Li Ming. ________ is a boy.
5. —How many ________ are there? (55支铅笔)
—There are ________.