To flog a dead horse
(A) To whip a dead horse
(B) To attempt to do the impossible
(C) Waste one’s efforts
(D) To take advantage of a weakness
(A) To whip a dead horse
(B) To attempt to do the impossible
(C) Waste one’s efforts
(D) To take advantage of a weakness
(A) To make utmost efforts
(B) To feel weak and tired
(C) To be a diligent worker
(D) To be methodical in work
(A) To fail to stand
(B) To fail to realise
(C) To fail to maintain
(D) To fail to produce intended effect
(A) Eat voraciously
(B) Have nothing to eat
(C) Eat roots
(D) To end in failure