Some problems ___ in the lecture by Mr.Smith are very popular in our school, such as the waste of electricity, water and food, etc...
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A
referring
B
referred to
C
referring to
D
were referred
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It seemed that the water       .
#69241
A
was to blame   
B
was to be blamed
C
should blame   
D
was blamed
He made up his mind to devote his life _____ pollution ______happily.
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A
to prevent; to live
B
to prevent; from living
C
to preventing; to live
D
to preventing; from living