Mr. Brown, a good friend of mine, __________ us but that he was short of money at the time.
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A
would help
B
would have helped
C
had helped
D
helped
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It is important that we        wild animals.
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A
ill protect
B
hould protect
C
hall protect
D
re protecting
I ________ you how to deal with the matter, but why didn’t you ask me?
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A
could show
B
were to show
C
had shown
D
would have shown
_______Wale_______at school,he would gain much higher a salary.
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A
Had;worked
B
If;worked
C
Did;work
D
If;has worked