1.I suggested him to do this job in different ways.2.I must study hard,so that I can catch up with other students.3.I did't know when did the accident took place.(仅供参考)
1 I suggest hem doing this work in different ways.2 I must work hard to catch up with other students.3 I don't know when the accident took place.祝你的英语越来越好噢,加油!