i think it was a good idea to watch tv 改为否定句

i think it was a good idea to watch tv 改为否定句 I think it's a good idea to pass on the message to her(改为否定句 I think it is a good idea.（改为否定句）…… I think he has a good idea.改为否定句,has要不要变回have? It's a good idea.(改为否定句) he wanted to know A why i didnot think it was a good idea Bw She wanted to know why I didn't think it was a good idea.其中的 I have a good idea .(改为否定句） I used to watch a lot of TV(改为否定句) .I think I'll stay at home and watch TV.(改为否定句) I think it is good for students to do more ex-ercise.(改为否定句） 急问：I said I don't think it was a good idea for her to copy m