Question

Which of the phrases (A), (B), (C) and (D) given below each sentence should replace the
phrase printed in BOLD to make it grammatically correct?
5.
Richa could not solve the problem at all and was at HER WITS.
(A) Her wits' end
(B) The wit's end
(C) Her witty end
(D) The wit end
6.
To reduce costs, we should replace our current system BYMUCH EFFICIENT one.
(A) Through more efficient
(B) Efficiently by
(C) With a more efficient
(D) For better efficiency​

Answer 1

Answer:

5.her witty eng

6.With a more efficient one