(2013·新课标全国卷Ⅰ)The door ________ open, no matter how hard she pushed.
#11317
A
shouldn't
B
couldn't
C
wouldn't
D
mightn't
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 Every year _____ money and energy is spent on environment protection. 
#14193
A
large quantities of
B
a large number of
C
a large quantity of
D
a plenty of
It was from John, ____ gave me a big key to _____ my dad.
#13703
A
who; understand
B
that; understanding
C
who; understanding
D
which; to understand
You can imagine what great trouble we had ______ the new school.
#13640
A
setting up
B
to set up
C
set up
D
to setting up