We need air-conditioned bus when we go outing. (   )

A．a

B．an

C．/

D．the

读句子并选出正确的单词填在横线上。
【小题1】Joy worked with wild animals.She________(find／found)a lion on her way home.
【小题2】I live on Changchun Road.The Greens are my________(neighbour／neighbours).
【小题3】Would you like to have________(a／an)e—friend?
【小题4】I have some e—friends in different ________(country／countries).
【小题5】The Lis have three ________ (child／children), one son and two daughters.

Have ___ apple.(   )

A．some

B．an

C．a

He’s _____driver(   ).

A．a

B．an

C．/

改错题。
1. It’s sun and warm.
__________改为__________.
2. Mother duck is near the river.
_________改为_____________.
3. There is a egg.
_________改为__________.
4. She has three baby.
__________改为__________.