I have a friend. His name is James. He’s an English boy. He is thirteen years old. He is tall. He has a round face, big eyes and a big nose. His mouth is wide, but his ears are small. His hair is short.

根据短文内容，选择正确答案。

小题1:James is my ____.

A．student

B．teacher

C．friend

D．sister小题2:James is ____.

A．12

B．13

C．14

D．15小题3:James comes from ____.

A．Canada

B．Japan

C．China

D．England小题4:James has ____ hair.

A．short

B．long

C．big

D．small小题5:____ is James.

A．

B．

C．

D．

维持生态系统的存在，下列不是必需成分的是[ ]

A．生产者

B．消费者

C．分解者

D．阳光、水、空气等