While John Snow attended Queen Victoria, he also thought about helping ordinary people ________ to cholera.
A. exposing B. being exposed C. exposed D. having exposed
As the population of the world is growing at the disturbing rate of 10，000 people an hour, nature is beginning to ________ us.
A. turn against B. turn up C. turn off D. turn around
The society can remain good as long as we are willing to fight for it—and to fight against whatever imperfections ________ exist.
A. shall B. may C. should D. would
Fishing in shallow water in autumn, ________ the water temperature is relatively high, does make sense.
A. when B. which C. as D. where
China will ________ cooperation with countries and regions participating in the Belt and Road Initiative.
A. approve B. justify C. enhance D. tighten
Effective weight management requires a longterm ________ in order to lose weight for good.
A. establishment B. commitment C. tournament D. assessment
