corect the following sentence: by the time of the dinosaurs, turtles have already developed the hard shell into which their heads and legs could be drawn
Answers
Answer:
The given sentence can be written correctly as shown below:
By the time of the dinosaurs, turtles had already developed the hard shell into which their heads and legs could be drawn.
Explanation:
Since the dinosaurs existed in the long past, it means the event happened in the past; so the helping verb 'had' should be used here. It is through using 'had' that the unity and correctness of tense and grammar can be maintained in this case.
Answer:
By the time of the dinosaurs, turtles had already developed the hard shell into which their heads and legs could be drawn.
In the above sentence it indicate that the dinosaurs existed in the long past. That means the time when dinosaurs existed is occurred before. Hence to make the sentence grammatically correct the verb 'had' ought to be utilized here. It is through utilizing 'had' that the solidarity and accuracy of tense as well as the language structure can be maintain in the given situation.