He is determined to become a specialist ________ computer when he grows up.
#26767
A
for
B
in
C
on
D
about
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(2014·福建名校质量检查)The United Nations is trying to free the world________the threat of war.
#25140
A
at
B
in
C
by
D
from
—Are you free this evening? —Sorry, I’ve promised to have Mary’s radio repaired ____ for her help with my English.
#25433
A
in relief
B
in return
C
in turn
D
in fact
_A Chinese runner,Liu Xiang,rushed to the ending line _______a surprising speed.
#28511
A
at
B
by
C
through
D
with
I went along the beach thinking of nothing ____.
#26521
A
in brief
B
in doubt
C
in harmony
D
in particular