The maths problem is not very difficult,so you can work it out without it over and over.(think)适当形式填空:The maths problem is not very difficult,so you can work it out without( )it over and over.(think)

问题描述:

The maths problem is not very difficult,so you can work it out without it over and over.(think)
适当形式填空:
The maths problem is not very difficult,so you can work it out without( )it over and over.(think)