根据括号中的数字填写合适的序数词或基数词（写单词）。
1、Bill is _________（11）years old , he is in Class_______（2）Grade_______（4）.
2、My birthday is on the_______________（3）of March .
3、September is the _______________（9）month in a year .
4、Which boy is thinner , the ______________（1）one or the ___________（2）one ?
5、There are _____________（12）apples on the desk .

How many birds are there ? There are__________.

A．eight

B．8 o’clock

C．cold

选出不同类的单词:（   ）

A．two

B．eleven

C．o'clock

—How many ________ do you have? (    )
—________.

A．mango; Two

B．mangoes; Two

C．mangoes; Too

I have _________ bags. (   )

A．a

B．two