The number of people in their class _______51.
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is
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are
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does
D
has
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_____your sister sad?
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Are
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Am
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Be
 As a result of destroying the forests, large ____ of desert ____ covered the land.
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number; has
B
quantities; has
C
number; have
D
quantities; have
 There ________ a lot of juice in the fridge. 
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has
B
is
C
are
D
have