_she returned an hour earlier, she wouldn't have been caught.
A. had
B. have
C. has
D. that
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A man is known by the companion he keeps.
A. 对
B. 错
Their parents are upstairs clearing the room.
A. 对
B. 错
He treat the matter_a joke.
A. as
B. to
C. on
D. in
I treat her sister_the theater.
A. to
B. for
C. as
D. in