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 .

选出不同类的单词
1．（    ）A.one   B.two C. second  
2．（    ）A. Monday B.  November C. December
3．（    ）A. twelfth B. twentieth C.   two
4．（    ）A. birthday   B.  children’s day  C. National day  
5．（   ）A.spring B. summer C.  season    
6．（    ）A.Monday B. Tuesday C. Army day
7．（    ）A.sister B.  friend C.  mother

May is the _______ month of the year.

A．five

B．fifth

C．fiveth

D．fourth

My classroom is on ________ floor. (   )

A．one

B．first

C．the first

Her birthday is May the ________. (   )

A．four

B．sixth

C．five