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--Are these your books?--Yes,    
#35304
A
they're
B
they are
C
these are
D
these're
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推荐题目
I have good news for________.  _______ is good news.
#35171
A
you, It
B
your, It
C
you, They
D
they, It
We’ve decided to decorate our new flat by ______ this weekend.
#34845
A
us
B
our
C
ours
D
ourselves
Tom and I are good friends. _______ often help each other.
#34857
A
We
B
Us
C
They
D
Them
---Do you like vegetables?---Yes, I do. I like _____.
#35070
A
it
B
them
C
they
D
their
Mr. Smith teaches ________ science. We all like ________classes very much.
#35018
A
us, his
B
our, he
C
our, him
D
us, him