It was not until the subprime loan crisis（次贷危机） ____ great damage to the American financial system that Americans ____ the severity of the situation．
#103104
A
caused, realized
B
had caused, realized
C
caused, had realized
D
was causing, had realized
推荐题目
—Were you in the library when Jack arrived there?—Yes, but I _________ soon afterwards.
#102906
A
had left
B
left
C
would leave
D
will leave
on the portrait, mother was deep in thought.
#102173
A
Fixed her eyes
B
Her eyes are fixed
C
Her eyes fixing
D
Her eyes fixed
By the middle of the 21st century, the vast majority of the world’s population _____ in cities rather than in the country.
#101424
A
are living
B
will be living
C
have lived
D
will have lived
I ____ go to bed ____ the telephone rang.
#103278
A
was about to, when
B
was going to, while
C
would, when
D
was to, while
-Why does the Lake smell terrible? -Because large quantities of water .
#104968
A
have polluted
B
is being polluted
C
has been polluted
D
have been polluted