Auxiliary Verb Selection
CMAT 2023 · Language Comprehension · Easy · Grammar
Pick the most appropriate auxiliary verb to fill in the blank: CCTV _______ been used for many years for the surveillance of public areas associated with obvious risk.
- A.
is
- B.
are
- C.
has
- D.
have
Answer
C
Explanation
'CCTV' takes a singular verb ('has') in present perfect passive tense when indicating an ongoing continuous action.
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