British adventurer and swimmer Lewis Gordon Pugh became the first person to swim in the icy waters of North Pole，to raise awareness of how global warming ______ the polar ice cap.
#104351
A
had affected
B
is affecting
C
affected
D
will affect
推荐题目
As far as I know, Mary is one of the students who ______ the English examination.
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A
passes
B
passed
C
has passed
D
have passed
–A boy was killed by the tiger in the zoo.–He was believed into the cage while feeding the tiger without permission.
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A
to fall
B
to be falling
C
to have fallen
D
having fallen
—When did Bob leave?—I have no idea. I ________ a shower upstairs.
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A
took
B
have taken
C
was taking
D
would take
They woke up ______ everything around ______.
#103189
A
found; changed
B
only to find; changed
C
to find; changing
D
finding; changed
If I ____ more about diamond, I ____ cheated by that man.
#102987
A
had known, would not be
B
had known; wouldn’t have been
C
knew; would not have been
D
had known; would never be