bird world litter term辨音,bird的ir world的or,litter的er,term的erelse last sport present都是scan't after plant taste划线都是aThe people there__working hard.A isn't B doesn't C aren't

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bird world litter term辨音,bird的ir world的or,litter的er,term的erelse last sport present都是scan't after plant taste划线都是aThe people there__working hard.A isn't B doesn't C aren't
bird world litter term辨音,bird的ir world的or,litter的er,term的er
else last sport present都是s
can't after plant taste划线都是a
The people there__working hard.
A isn't B doesn't C aren't

bird world litter term辨音,bird的ir world的or,litter的er,term的erelse last sport present都是scan't after plant taste划线都是aThe people there__working hard.A isn't B doesn't C aren't
选C
因为后面的work用了working,所以肯定是和be动词连用
the people是复数形式
所以用be动词are