Question

Add question tag : The short informative book became an account of cosmology

Answer 1

Given sentence:
The short informative book became an account of cosmology.

Sentence with the question tag:
The short informative book became an account of cosmology, did not/didn't it?
Here, the question tag is - did not it or didn't it

Additional information:
Question tags are the piece of text or group of words that after adding at the end of a sentence converts the sentence into a question.

Answer 2

The short informative book became an account of cosmology didn't it?  

EXPLANATION:  

• 'Question tags' are used in various conversations. It is generally used to confirm to the answers that are already available to the speaker but is used for general conversation.
• The 'question tag' must be such that when it is asked the given sentence would become its answer. Here also if we read the sentence given and then ask the question tag, 'didn't it?' Then we would be getting the above sentence as its answer.  

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