Henry Wadsworth Longfellow was a professor of Modern Languages at Harv

Hey Hero8888 ,

No, "at the same time was also" isn't making redundancy error. Infact, it is required.

Let's discuss a couple of versions:

1. Henry Wadsworth Longfellow was a professor of Modern Languages at Harvard, and at the same time was one of America’s greatest poets.

This tells us two qualities of Henry that happened at the same time.

2. Henry Wadsworth Longfellow was a professor of Modern Languages at Harvard, and was also one of America’s greatest poets.

This doesn't tell us the two things happened at the same time.

3. Henry Wadsworth Longfellow was a professor of Modern Languages at Harvard, and at the same time was also one of America’s greatest poets.

This tells us two qualities of Henry that happened at the same time. By using also, it is emphasizing that he was not only a professor but also a poet. So, there is a slight difference in the meaning. Also, since this construction has been used in the correct answer and we have solid reasons to reject other options, we can consider this construction correct.

For option E, yes "being" part is modifying the entire clause.

Does that make sense?

Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.