—What do you think of the story in today's newspaper?
—We shouldn't ________ the trouble of helping others only because what we do may invite trouble.
A．knock off B．take off
C．keep off D．break off
She wanted to ask if he had news of Williams, but words ________ in her throat.
A．burst B．stuck
C．broke D．settled
The Chinese football team had experienced a series of reforms. However, its performances in Shenzhen in October ________ all the people, especially the crazy fans.
A．knocked down B．let down
C．pulled down D．brought down
After the mass shootings at Sandy Hook Elementary School, President Obama ordered his members to ________ solutions to gun violence.
A．put up with B．come up with
C．keep up with D．catch up with
The monthly sales of Mo Yan's works ________ 199 times compared with those before he won the Nobel Prize for Literature.
A．accelerated B．stretched
C．multiplied D．switched
Though the “No smoking” signs have existed for long in public places, heavy smokers often ________ them and light up cigarettes.
A．abandon B．postpone
C．decline D．ignore
