When I try to understand _______ that prevents so many Americans from being as happy as one might expect, it seems to me that there are two causes.
#85435
A
why it does
B
what it does
C
what it is
D
why it is
推荐题目
It was along the Mississippi River _____ Mark Twain spent much of his childhood.
#85009
A
how
B
which
C
that
D
where
It is in Qingdao _____ you‘ re going to pay a visit to ______this kind of washing machine is produced.
#85258
A
/; that
B
where; which
C
/ ; where
D
that ; which
Mary didn’t understand made her deskmate so upset all the morning.
#85195
A
it was that
B
why it was that
C
how that was
D
what it was that
— What did she want to know, Tom? — She wondered ____ we could complete the experiment
#85493
A
when was it
B
it was when that
C
it was when
D
when it was that