so that And so注：不是so---that例如I sit in the front of the classroom----I can hear clearly用so 还是so that?why?

so that And so注：不是so---that例如I sit in the front of the classroom----I can hear clearly用so 还是so that?why? so .that. so that so...that so that and so~that 有何区别? and so and so And so And so on and so so so so so so so so, So SO