Saltyfoodmay________greatthreatto people'shealth.
A. expose
B. compose
C. pose
D. propose
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Toomuchexposure________sunlightmightcause skindiseases.
A. in
B. on
C. to
D. under
Patientsshouldmakethe______oftheir doctor’svisits.
A. least
B. most
C. better
D. good
Astudyshowsthataircraftnoiseclearlyand significantly________people'shealth.
A. despairs
B. repairs
C. prepares
D. impairs
Thepatientisstrong-willedandnever________his hopetolive.
A. givesin
B. givesout
C. givesup
D. givesback