We must do something about __________ our natural resources.
A. preserving
B. present
C. reserve
D. protect
查看答案
We want the government to take action to __________ the economy.
A. lift
B. boost
C. heighten
D. enhance
Lack of chicken feed means that chicken farms have to __________ their stock.
A. slaughter
B. saturate
C. modernize
D. breed
Loss of __________ can be a result of minor infections or health conditions such as coughs, fever, or indigestion.
A. appetite
B. appeal
C. apologize
D. apposite
Dispose of that nuclear waste properly or it will _______ the groundwater.
A. polluted
B. contaminate
C. recommend
D. containment