They built a wall to______wolves______their ranch.
A. protect, from
B. keep, out of
C. limit, to
D. preserve, from
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As there was a power cut in the hospital, the surgeon had to call______the operation.
A. on
B. off
C. out
D. for
While Stella was in Paris, she______a lot of French.
A. got around
B. took in
C. put away
D. picked up
Although they are poor, they have______up five children very well.
A. grown
B. taken
C. brought
D. pulled
The above discussion has______the rise of US imperialism at the expense of its competitors.
A. centered on
B. centered at
C. centered towards
D. centered for