All the students _______ happy _______ see each other.  （   ）

A．are, ／

B．is, to

C．are, to

用所给词的正确形式填空。
【小题1】Today is Peter’ s___________( nine)birthday.
【小题2】The Communist Party of China was__________(found)on July Ist, 1921.
【小题3】Look! People_________________(celebrate)National Day.
【小题4】In this picture, the family______________(be) having dinner.
【小题5】Micky,____________(open) the door, please.
【小题6】Our teacher_________(give)presents to___________(we)on Children's Day.
【小题7】In the next autumn, they had a______(celebrate) on Thanksgiving Day.

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.

People ____ writing in the classroom. (    )

A．is

B．are

C．was

She ____ doing the dishes. I ____ doing the dishes, too.

A．is, is

B．is, am

C．are, is