用单词的适当形式填空。
have   sit be    look    open
（1）There ________three small eggs and a big egg.   
（2）Mother Duck________on the eggs.   
（3）The big egg________later.   
（4）It is winter. It is cold. The ugly duckling________no home.   
（5）The ugly duckling________into the water. He is a beautiful swan.

She would like _____(be) a singer.

A．to be

B．is

C．be

We ___ a happy family.

A．a

B．is

C．are

They _____ too small. （    ）

A．are

B．do

Where  my shoes?   (  )

A．are

B．is

C．be