The problem is ________ sometimes when w
问题:
The problem is ________ sometimes when we are given something on a constant basis, we start to take them for granted and forget being thankful for what we already have.
A.that
B.how
C.where
D.which
The problem is ________ sometimes when we are given something on a constant basis, we start to take them for granted and forget being thankful for what we already have.
A.that
B.how
C.where
D.which