Sentence Improvement

General English

Title

45:30

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8 of 24 completed

Notes Progress

5 of 15 completed

MCQs Progress

38 of 100 completed

Subjective Progress

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Direction:-In questions given below, a part of the sentence is italicised and underlined. Below are given alternatives to the italicised part which may improve the sentence. Choose the correct alternative. In case no improvement is needed, option 'D' is the answer.

Why the dinosaurs died out is not known.

it is not known

the reason is not known

that is not known

No improvement