补全下列句子。
1. How many _____（山羊）can you see?
2. I can see _____（十五只）ducks.
3. Can you see a house __________（在那儿）.

There are____ days in a week. (  )

A．seven

B．seventh

C．eighth

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 .

当你想表达“我九岁了”时，应说：(  )

A．I’m nine.

B．I’m eight.

Three dogs have ______ legs. (   )

A．twelve

B．ten

C．fourteen