People have come to understand _____ prevents so many Americans from being as happy as one might expect.
#85069
A
that it is why
B
what does it that
C
why it does that
D
what it is that
推荐题目
It was with the help of the local guide ______ the mountain climber was rescued.
#84926
A
who
B
that
C
when
D
how
It ________ last night_____ Tom saw an interesting film in Dongfeng Cinema.
#85130
A
is; that
B
was; that
C
was; which
D
was; who