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I think ______ is necessary ______ us to do something useful to protect the birds.
#50276
A
this; for
B
it; of
C
this; of
D
it;for
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Why did you argue __________ him?  
#50048
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to
B
on
C
by
D
with
My mother never has noodles    breakfast.
#49145
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at
B
on
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in
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for
He is _____________a meeting.
#48330
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have
B
has
C
at
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____the end of the day, we were very tired.
#46503
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In
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At
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To
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Susan is my good friend and she always helps me _______ my Maths.
#49088
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in
B
on
C
for
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with