454. Find out whether there is any grammatical error in below sentence. While Mahendra was away / on a long official tour / his office receive an important letter / which was marked ‘Urgent’.

A. While Mahendra was away
B. on a long official tour
C. his office receive an important letter
D. which was marked ‘Urgent’
✅ The correct answer is option C.

457. Find out whether there is any grammatical error in below sentence. The job is much worse than I expected / If I would have realised / how awful it was going to be / I would not have accepted it.

A. The job is much worse than I expected
B. If I would have realised
C. how awful it was going to be
D. I would not have accepted it
✅ The correct answer is option B.