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.

Look!Tina with her radio. (    )

A．are playing

B．play

C．is playing

Stop walking! The car is ____! ( )

A．come

B．to come

C．to coming

D．coming

用所给词的正确形式填空。
【小题1】We should stop _________ (throw) rubbish into rivers.
【小题2】In the past, the Earth _________ (be) clean and beautiful.
【小题3】My brother is __________ (plant) trees in the backyard.
【小题4】The Earth __________(get) sick now.
【小题5】We shouldn’t __________ (cut) down so many trees.

It’s  .(   )

A．snows

B．snowing

C．snow