[最佳答案] Some students think a difficult exam just like a challenge and the more difficult it is, the more (把more拿掉)better it will be. They say a difficult exam can helps(把helps改成help) students to(删掉to) find out where they are weak in their studies and improve their learning methods. Others, however, are against a difficult exam, in their opinion, if it is very difficult, they may become discourage(加d)and feel terribly (改成terrible)about their studies. I prefer an exam neither too difficult nor too easy,

[最佳答案] Some students think a difficult exam just like a challenge and the more difficult it is,the more (把more拿掉)better it will be.They say a difficult exam can helps(把helps改成help) students to(删掉to) find out where they are weak in their studies and improve their learning methods.