It’s necessary _____ the dog’s fur and play with it for _______.
#44028
A
brushing, sometimes
B
to brush, sometime
C
brushing, sometimes
D
to brush, some time
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He was unaware of our coming.   
#40519
A
knew
B
realized
C
didn’t realize
D
not know
I use my computer_______ information every week.
#40707
A
to search
B
to finding
C
to search for
D
to look