The child was lost in the forest, where he was _____ the mercy of wild beasts.
#28224
A
in
B
on
C
for
D
at
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We hung a net round the bed, which could protect us _____ mosquitoes and other insects.
#26034
A
from
B
by
C
off
D
under
The trip was hard at first. But it was smooth_____ .
#27214
A
at the end
B
in the end
C
of the end
D
by the end
(2013·湖北，30)An artist who was recently traveling on a ferry to the southern island discovered________a long lost antique Greek vase.
#25355
A
at random
B
by chance
C
in turn
D
on occasion