Let Tom does his homework now

Let Tom does his homework now 这个句子如何变否定句啊?Tom does his hom work at home When did Tom does his homework?改错 Tom does not do his homework 祈使句 When did Tom does his homework改错 把Tom does his homework carefully改为感叹句注：改为（ )（ )Tom( )his homework! Tom does his homework at night 改为正在进行时 Tom（） （） his homework now 是Is Tom going to do his homework?还是 Is Tom going to does his homework? Tom dose his homework the most carefully in his class.(同义句)Tom does his homework .carefully..all his classmate. Tom often does his homework at home.改为否定句 Tom does his homework often dinner改为否定句 tom does his homework after dinner改为一般疑问句 tom does his homework at home 改为否定句 Tom does his homework at home.变为一般疑问句 Tom does his homework at home 怎么改成否定句? TOM does his homework after school.改为否定句. Tom does his homework at home.改为否定句 he wants to know when Tom does his homework.