We should protect the environment, for plenty of fresh air ________ to good health.
#72963
A
adjust
B
contributes
C
distributes
D
attributes
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Without more wood ____ the fire, it would soon go out.
#74285
A
added to
B
adding to
C
added up
D
adding up
 He was so ___ that his legs ___ under him.
#83468
A
upset…gave in
B
excited …gave up
C
worn out..gave out
D
astonished..gave off