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  9. Q59

Kerala KAS 2020 · Question 59 of 70

Over the last fifty years, mobiles ______ dramatically.

English - Verb Forms

  1. Ahave been developed
  2. Bwere developed
  3. Chave developedCorrect
  4. Dare being developed

Answer: C. have developed

Explanation

Present perfect passive 'have been developed' fits the fifty-year time span.

Source: Kerala PSC KAS Officer 016/2020 official paper (22-Feb-2020), official FINAL answer key (booklet A)

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