Question

The Empire State Building, the Sears Tower, the

Answer 1

The Empire State Building, the Sears Tower, the Canadian National Tower - each of these structures was the tallest in the world at the time they were (Option D) built.

What is sentence correction?

Sentence correction or sentence improvement is a type of grammatical practice where a sentence is given with a word or a phrase that requires grammatical changes or improvement.

Now,

• Here, we are talking about each of the mentioned structures.
• By grammar, everything used for them must be singular.
• But as mentioned in the sentence in part D, the plurals "they were" are used, which is the faulty part of the sentence.

Hence, Option D is the correct part that needs correction; the correction would be: "it was built."

To learn more about sentence correction, refer to the link: brainly.com/question/14632568

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