①Eighty p____ of our students come to school by bike.填空

问题描述:

①Eighty p____ of our students come to school by bike.填空
①Eighty p____ of our students come to school by bike.②We all know many students oftrn go o____.③Exercise is healthy for the m____ and the b___.

1 percents
2 outside
3 mentality,body