The criminals managed to escape from the prison even though two armed policemen were . . . . . . . vigil over them.
A. taking
B. putting
C. guarding
D. keeping
E. looking
Answer: Option D
Solution (By Examveda Team)
The criminals managed to escape from the prison even though two armed policemen were keeping vigil over them.This Question Belongs to Competitive English >> Sentence Completion
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