应该改成“There are ten new computers."
常见的英语改病句例题还有：
请修改下列病句。
(1) His wish is becoming a singer.
(2) He enjoys listening to pop songs.
(3) There is nothing worry about.
(4) It takes forty-five minutes get there by bus.
(5) You need warm clothes to protect you from the cold.
(6) She asked me how long it will take to build the church.
(7) George said he would arrive here the next day.
(8) The teacher told the small boy the sun rises in the east.
(9) She said that she had seen the film yesterday.
(10) I asked him how much did it cost.
答案：
(1) His wish is to become a singer.
(2) He enjoys listening to pop songs.
(3) There is nothing to worry about.
(4) It takes forty-five minutes to get there by bus.
(5) You need warm clothes to provent you from the cold.
(6) She asked me how long it would take to build the church.
(7) George said he would arrive here the next day.
(8) The teacher told the small boy the sun rises in the east.
(9) She said that she had seen the film the day before.
(10) I asked him how much it cost.