I think a good friend is very important for me改为否定句

I think a good friend is very important for me改为否定句 I think understanding is very important in a _______(friend) I think it is good for students to do more ex-ercise.(改为否定句） 把 I think it is good for you改为否定句 I think she is good at listening.改为否定句! I think the movie is very interesting.改为否定句 i think the movie is very interesting改为否定句 I think MY Father and MY Mother is a good movie 改为否定句 I think she is a good student怎样改为否定句 i think this is a good way of improving your english.改为否定句 I think it is a good idea.（改为否定句）…… I think Xiong Ning is a good example to us.(改为否定句）