The professor walked onto the platform and seated himself in a chair, ____ for answering questions. 
#104211
A
had prepared
B
being prepared
C
preparing
D
prepared
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 I don't think she ____what happens to her children.
#99023
A
cares to
B
cares about
C
cares for
D
takes care of
——Oh,it’s you!I______you. ——I’ve just had my hair cut and I’m wearing new glasses.
#103501
A
didn’t recognize
B
hadn’t recognized
C
haven’t recognized
D
don’t recongnize