I just don't understand_____________ that prevents so many Americans from being as happy as one might expect.
#85501
A
why it does
B
what it does
C
what it is
D
why it is
推荐题目
It was at school _____ he had studied _______ we met him last night.
#84773
A
where; that
B
that; that
C
that; where
D
where; where
I just wonder _____ that makes him so excited.
#85450
A
why it does
B
what he does
C
how it is
D
what it is
It was after he got what he had desired_____ he realized it was not so important.
#84817
A
that
B
when
C
as
D
since
It was not until Susan came back ______her close friends were waiting for him.
#84823
A
which she knew
B
which did she know
C
that she knew
D
that did she know