Can you imagine what difficulty people had this year_______against the severe natural disasters?
| A．fighting | B．to fight | C．fought | D．fight |
change
| A．machine | B．headache | C．research | D．school |
success
| A．official | B．excuse | C．correct | D．exciting |
area
| A．theatre | B．breathe | C．break | D．sweat |
Researchers in Italy saydrinking may lengthen your life, while too much may shorten it.
| A．moderate | B．strenuous | C．rigorous | D．hearty |
His latest research is at theof genetic science.
| A．maiden voyage | B．cutting edge |
| C．focus group | D．daily basis |