急！！！帮忙回答下，只需三四句话

Three.the third is those wasting time all days,knowing nothing and gain nothing,the second,is those hard working students,they spend all their time on study,and the first,is the very classification I want myself to be,is the aggresive ones,they pay attention not only study,but also some sociaty experience,they're prepare for the day coming into sociaty and know how to prapare for it and they did it.

i donn't know
maybe ten or twenty

没懂你这个问题的意思。。。