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 ?