东方小学有男生760人，女生640人，前进小学女生人数是男生人数的120%。如果把这两个学校的学生合在一起，结果男生和女生的人数正好相等。前进小学共有学生（    ）人。

Smith was overweight,so the doctor urged that not only_______have less fat and meat,but also he_______.

A．should he;take exercise

B．must he;takes exercises

C．he can;does some exercises

D．he ought to;do some practice