A friend of mine cheated in the exam by using his mobile phone yesterday.Our English teacher,who is really smart and noticed what he did.As a result,he only got 0 in that exam and I feel very sorry.Many students were shocked because my friend used to be an honest boy and no one could think about his cheating.It's important to stay true to ourselves and always be honest.And I found it embarressed to be caught directly.So the best way is to study hard and consequently,when I know the answer to the questions in the exam,it's unneccessary to copy others' answer.