改为否定句:1.Both of the brothers work as farmers. 改为否定句: 1.Both of the brothers work as farmers. 2.He reads English every morning. 3.It is necessary for him to improve his handwriting. 4.The stuents have done everything for the meeting.
改为否定句: 1.Both of the brothers donot work as farmers. 2.He does not reads English every morning. 3.It is not necessary for him to improve his handwriting. 4.The students have not done everything for the meeting.