if you worry a lot and don't want to tell us,you can solve it by seeing a ____

if you worry a lot and don't want to tell us,you can solve it by seeing a ____
looking after her sick mother has also ___ her study.
Tom can work out the math problem ___ without any help.
it is ___ of you to care more for the best students in our class.
this is an ___ thing.forget it and try to be happy.
you should learn to enjoy __ the challenges
I'm sure the ___ between us will last forever.
being ___,we must behave better than teenagers.
一些词：develop,psychology,agreement,fair,face,influence,easy ,adult,