(2013·宁夏银川一中高三第四次考试)Siberian Tigers ________ and killed at such a speed that they will disappear from the earth in the near future.
#99603
A
hunted
B
are hunted
C
are being hunted
D
had been hunted
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More and more people are beginning to _____ importance to living a low-carbon(低炭) life.
#99846
A
inspect
B
attach
C
express
D
earn
By the time Jack returned home from England, his son from college.
#101871
A
graduated
B
has graduated
C
had been
D
had graduated
—Did you have a good time meeting your old friends yesterday? —Yes, I did. I them since we graduated from college.
#102172
A
didn’t see
B
hadn’t seen
C
haven’t seen
D
wouldn’t see
----This returned Chinese scholar has become one of the top experts in this field.----Yes,I know him very well.He____in Africa with animals for eight years.
#104192
A
has worke
B
had worked
C
worked
D
has been working