根据要求改写下列句子(注意句首要大写)。
1.We have a computer lesson today. (将we 改为he)
a computer lesson today.
2.They are good friends.(改为一般疑问句)
good friends?
3.You must wash your hands now.(对画线部分提问)
must I now?
4.There are two computers in the room.(对画线部分提问)
computers there in the room?
5.Is this your ball?(改为同义句)
Is this ball ?