Read each sentence to find out whether there is any error in it. 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, mark "No Error" as your answer. (Ignore the errors of punctuation).
Over time, however, they have met with considerable success, even through there is a long way to go and there is often regression.
AOver time, however, they haveCorrect AnswerIncorrect Answer
Bmet with considerable success,Correct AnswerIncorrect Answer
Ceven through there is a long way to goCorrect AnswerIncorrect Answer
Dand there is often regression.Correct AnswerIncorrect Answer