Our teacher entered the classroom, __________.
#92925
A
a book in hand
B
book in hand
C
book in his hand
D
a book in hands
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---He seems to be a teacher.---______. He has been a teacher for 20 years.
#92310
A
So he does
B
So he is
C
So does he
D
So is he
When he knocked at the door, my mother was busy ____ supper.
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A
preparing for
B
in preparing
C
to prepare for
D
to prepare
________ be sent to work in Beijing? 
#93982
A
Do you suggest who should
B
Do you suggest whom should
C
Who do you suggest
D
Who do you suggest would