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book English Skills 10th Edition by John Langan, Zoe Albright cover

English Skills 10th Edition by John Langan, Zoe Albright

Edition 10ISBN: 978-1260257120
book English Skills 10th Edition by John Langan, Zoe Albright cover

English Skills 10th Edition by John Langan, Zoe Albright

Edition 10ISBN: 978-1260257120
Exercise 49
In the passage below, one verb must be changed so that it agrees in tense with the other verbs. Cross out the incorrect verb, and write the correct form above each crossed-out verb.
Molly's grandfather was a college English professor. Only after he retires did he learn to read Italian.
Explanation
Verified
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English Skills 10th Edition by John Langan, Zoe Albright
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