Question
Read each sentence carefully to find out whether there
is any grammatical or idiomatic error. The error, if any, will be in one part of the sentence. Mark the part with the error as your answer. If there is no error, choose (e) as your option: Hardly had the staff completed the closing formalities than the power supply was suddenly disrupted.Solution
The correlative pair used with Hardly is “hardly … when”, not than. Incorrect: Hardly had the staff completed … than the power supply… Correct: Hardly had the staff completed … when the power supply was suddenly disrupted.
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