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.

Where_____my socks? （  ）

A．am

B．is

C．are

We ______ the White family.(   )

A．are

B．is

C．am

Miss Li and her students _______ a lesson. （ ）

A．having

B．is having

C．are having

—How much  the apples? (   )
—Two yuan.

A．is

B．are

C．do