They had hardly finished A their meals that at once B they resumed their duty C No error D ........

English ( Master) Conjunctions

Directions :- Read each sentence to find out whether there is any grammatical error or idiomatic error in it. The error, if any, will be in one part of the sentence. The number of that part is the answer. If there is ‘No error’, the answer is (D). (Ignore errors of punctuation, if any).

They had hardly finished (A) / their meals that at once (B) / they resumed their duty (C) / No error (D)