初二英语;in order to ____hurting your back or your neck,you should sit with your____ __straight

问题描述:

初二英语;in order to ____hurting your back or your neck,you should sit with your____ __straight

not
waist up

avoid , head

in order to _stop___hurting your back or your neck,you should sit with your__back__straight

keep from
body