—Is that Dec.21,2012 is the end of the world true?—Definitely not,but ________ must be paid to global climate change.
#99502
A
contact
B
care
C
attention
D
influence
推荐题目
I first met your sister ten years ago, when she ____at a supermarket as a salesgirl. 
#102409
A
has worked
B
had worked
C
was working
D
had been working
If George had followed his father’s advice, he ________ a lawyer now. 
#100621
A
is
B
would be
C
has been
D
would have been
--I’m going to the States?--How long ________ you________ in the States?
#101653
A
are; stayed  
B
are; staying  
C
have; stayed 
D
did; stay
--Why has he been staying at home these days?  --He ___________ since a month ago.
#104803
A
has been out of work
B
was out of work
C
has lost his work
D
had left from his work