When was it            you met him in the library?
#85030
A
as
B
that
C
while
D
if.
推荐题目
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
It was _____ he came back from Africa that year _____ he met the girl he’d like to marry.
#85146
A
when; then
B
not until; that
C
only; when
D
not; until
 The police were seeking more information to find out ________ the rich merchant.
#84656
A
who was it that killed
B
who it was that killed
C
it was who killed
D
who was it killed