Use Parallel Structure with Comparisons

Each of the following sentences contains words or groups of words that should be parallel. Indicate if the sentences are parallel (Yes) or not parallel (No).


His research for the thesis was more useful than hers.


Dining in a restaurant is more fun than to eat at home.


I want a new secretary who is as efficient as the previous one.


What you do today should be the same as did yesterday.


This lesson is more difficult than we had before.


You have less homework than they do.


What you do has more effect than what you say.


Music in your country is quite similar to my country.


The collection of foreign journals in the university library is more extensive than the high school library.


How to buy a used car can be as difficult as buying a new car.

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