Do you think        necessary to do a bird count ?Yes , we must count them at least once a year 
#53119
A
it
B
that
C
we
D
they
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--Who is that woman?  --She is ______ mother. 
#54283
A
her
B
she
C
he’s
D
hers
Han  Mei , _____is Susan.
#53111
A
the
B
this
C
it
D
you