In each question below, a sentence is given with an idiom/phrase printed in bold type. That part may contain a grammatical error. Each sentence is followed by four alternatives. Find out which option should replace the phrase/idiom given in bold to correct the error, if there is any, and to make the sentence grammatically meaningful and correct. If the sentence is correct as it is and ‘No correction is required’, mark 5) as the answer. Ravi was on cloud eleven when he heard that he had won the lottery.