(2014·江苏盐城二模)Lewin was interested in taking research beyond books and looking at how it could________real social change.
#99133
A
bring up 
B
bring about
C
bring in 
D
bring out
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 I ________ a topic for the composition, but haven’t decided yet.
#100171
A
will think about
B
have been thinking about
C
had thought about
D
was thought about
I need one more stamp before my collection ______. (MET1994 ) 
#104331
A
hascompleted
B
completes
C
hasbeencompleted
D
iscompleted