— I heard they went skating in the mountains last winter. — It _____ true because there was little snow there. 
#104884
A
may not be
B
won’t be
C
couldn’t
D
mustn’t be
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—Look, where are you going!—Sorry, I _______.
#100564
A
wasn’t noticing
B
didn’t notice
C
haven’t noticed
D
am not noticing
I’ve finally finished my paper and it __ me an entire month.
#104427
A
takes
B
took
C
was taken
D
had taken