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.
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A
had affected
B
is affecting
C
affected
D
will affect
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. A relative of yours ______ this evening.
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A
will be coming to see you
B
will have been coming
C
would come to see you
D
won’t have seen you
I could have helped him out, to tell the truth, I _____ too busy.
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A
am
B
was
C
have been
D
had been
. — We ______ to put off our school sports meet until next month. — I ______ that.
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A
have decided; didn’t expect
B
decided; didn’t expect
C
have decided; haven’t expected
D
decide; don’t expect
I ______ Mr White at that time, otherwise I wouldn’t have asked you for some information about him.
#102921
A
hadn’t known
B
didn’t know
C
don’t know
D
haven’t known