Knowing that letter is there in my locker,___,makes me more comfortable with

问题描述:

Knowing that letter is there in my locker,___,makes me more comfortable with
however
therefore
选哪一个,

选therefore
however,然而,有转折之意,;therefore,表顺承关系
知道那封信在我抽屉,所以我放心了很多