After the mass shootings at Sandy Hook Elementary School, President Obama ordered his members to ________ solutions to gun violence.
#11104
A
put up with
B
come up with
C
keep up with
D
catch up with
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 Every year _____ money and energy is spent on environment protection. 
#14193
A
large quantities of
B
a large number of
C
a large quantity of
D
a plenty of
 They sold ______ boxes of such sweets last week.
#14047
A
four dozens of
B
four dozen
C
four dozen of
D
four dozens