I ______ a big pizza yesterday. (    )

A．eat

B．ate

C．eated

There _____ a big lake and lots of ducks. (   )

A．are

B．was

C．were

They _________ in Dalian four years ago. (    )

A．lives

B．are living

C．lived

Kitty _________ herself last summer holiday. (    )

A．is enjoyed

B．enjoyed

C．enjoying

用所给词的适当形式填空。
【小题1】They _________ (spend) their holiday in London last month.
【小题2】Kitty enjoyed _________ (her) at Tom’s birthday party.
【小题3】Lucy is _________ (write) a postcard now.
【小题4】I am _________ (have) a good time in Guangzhou. I _________ (come) here by plane last week.
【小题5】Joe is good at ____________ (climb) mountains. He wants to climb Mount Tai.