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Sentence Correction: Tenses - Past Simple and Progressive

A new analysis of the fossil remains of a huge carnivorous dinosaur that lived about 85 million years ago reveals that, like today's birds do, it had tissue-like breathing chambers.

This answer choice is grammatically incorrect. The like section should not include a conjugated verb. In this answer choice, however, the like section includes a conjugated verb (like today's birds do).

What helps us identify this question as a Comparative question as well as identify the mistake is the following Stop Sign:

Like, unlike, than, as

This answer choice is grammatically incorrect and repeats the original Comparative error. The like section should not include a conjugated verb. In this answer choice, however, the like section includes a conjugated verb (like today's birds do).

What helps us identify this question as a Comparative question as well as identify the mistake is the following Stop Sign:

Like, unlike, than, as

Although this answer choice corrects the original Comparative error by removing the verb do from the like section (like today's birds), it is grammatically incorrect. The phrase dinosaur that lived about 85 million years ago indicates that this sentence should be in the PastSimple. However, this answer choice uses the Present (have).

Although this answer choice corrects the original Comparative error by removing the verb do from the like section (like today's birds), it is grammatically incorrect. The phrase dinosaur that lived about 85 million years ago indicates that this sentence should be in the Past Simple. However, this answer choice uses the Present (has).

Good job!

This answer choice corrects the original Comparative error by removing the verb do from the like section (like today's birds).

A new analysis of the fossil remains of a huge carnivorous dinosaur that lived about 85 million years ago reveals that, like today's birds do, it had tissue-like breathing chambers
A new analysis of the fossil remains of a huge carnivorous dinosaur that lived about 85 million years ago reveals that, like today's birds, it may have tissue-like breathing chambers
A new analysis of the fossil remains of a huge carnivorous dinosaur that lived about 85 million years ago reveals that it had tissue-like breathing chambers, like today's birds do
Following a new analysis of the fossil remains of a huge carnivorous dinosaur that lived about 85 million years ago, it was revealed that, like today's birds, it has tissue-like breathing chambers
A new analysis of the fossil remains of a huge carnivorous dinosaur that lived about 85 million years ago reveals that, like today's birds, it had tissue-like breathing chambers