下列句子中各有一处错误，请选出来并在横线上改正。
【小题1】There arefourballoon. （______）_____________
A  B    C
【小题2】How many studentare there in your class?   （______）_____________
A    B C
【小题3】What do you do onan English class? （______）_____________
A   B  C
【小题4】Are you likemusic?    （______） _____________
A B   C
【小题5】There is two sofasin the living room.   （______）_____________
A B  C

写出下列单词的复数形式
1.factory _______   2.trunk ____________  3.plant __________
4.seed _________   5.leaf __________ 6. be ___________
7.trunk _________  8.tree __________

How old  you? ( )

A．am

B．is

C．are

We feel happy to ______ close to nature. (   )

A．have

B．being

C．be

Don't talk here. My father and mother  . (    )

A．is sleeping

B．sleep

C．are sleeping