To get well, a chemistry treatment is necessary哪里错了?

To get well, a chemistry treatment is necessary哪里错了? To get well,an operation is necessary 一道非谓语英语题If___the same treatment again,he is sure to get well It is not necessary to write send messages.中哪里错了 改错To be well-informed ,reading widely is necessary . li is necessary for us to learn English well now. it is necessary for me to take a taxi中用动词来代替it is necessary Is your brother skate well?哪里错了? Work experience is a necessary supplement to a college educa --it is necessary to get up early. --it is much ---【necessar Here is a plan to our school哪里错了 It's necessary to learn English well.