I Often modified the Website www.uuwai.com title,do you think it is right?这语法是否正确.

I Often modified the Website www.uuwai.com title,do you think it is right?这语法是否正确. I often play the piano. I heard him sing in the classroom改为被动语态?someone say it should be modified likehe was heard to sing in the classroom.is that correct? 英语翻译“ Pls kindly note I have already modified the contract and sent out the hard copies with my boss' signature ”这里的hard copies 是指什么? The file.D/A.has been modified the editor! I often surf the I___ on weekends. I often ____(clean) the room. I often play the piano( ) home. I often ask the teacher____help.填介词 I often paly the piano Tina said I often ( )TV in the evening I often play ( ) the snow in winter. I often help ___ the dinner table. I often send and receive___on the Internet. i often play the violin 句子结构 I often go to the movies I often heard () (sing) in the room 英语翻译i am attaching the modified draw,please confirm if this base are recommended and if is possible send me a picture of dip tray.