1.jack can speak english 2.you must finish your homework at

1.jack can speak english 2.you must finish your homework at 1.Do your homework at home.(改为否定句） 2.At home we must finish You must finish your homework （one） you must finish your homework before____to bed Jack finish () {do} his English homework at 8: 00. you can finish your homework all（） When you finish doing your homework ,you must c_____ it. you must finish your homework before you go to bed 为什么是you must finish doing your homework,而不是you must finish y you must finish your homework today.改成否定句. you must finish doing your homework first的句子结构 you must finish your homework first.否定句