They were lost at sea, _______ the mercy of wind and weather.
#70590
A
on
B
at
C
in
D
by
推荐题目
The visiting professor _____ giving lectures to students ______ invited to meetings at times.
#81590
A
preferred; to being
B
preferred to; rather than
C
preferred; than being
D
preferred; to being
Go back home now, Mary. Your parents ______ your safety.
#63864
A
are concerned about
B
are concerned with
C
are concerned on
D
concern of