At a beach or a swimming pool a lifeguard is a person who is responsible for __________ other swimmers and protecting them from accidents.
#73068
A
turning to
B
watching over
C
watching out
D
digging out
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These doctors are busy day and night, a cure for AIDS.
#70989
A
bringing on
B
pulling on
C
taking on
D
working on
(2011·山东)He had his camera ready ________ he saw something that would make a good picture.
#64343
A
even if
B
if only
C
in case
D
so that
The Chinese lunar New Year usually ______ two records: the world's most watched television gala show, and its busiest telecommunications network.
#64757
A
develops
B
witnesses
C
establishes
D
launches
Everyone should _______________ the environment.
#66667
A
make a contribution to protect
B
make contribution to protecting
C
contribute in protecting
D
make contributions to protecting
The rich only ______themselves in making money and had no eye for the needs of workers.
#70536
A
devoted
B
occupied
C
enjoyed
D
concerned