Question

I can't think for any explanation ___ she should have reacted so violently
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Answer 1

Explanation:

It is better to fail in originality than to succeed in imitation

Answer 2

We need to complete the blank given in the sentence with an appropriate word

• I think the appropriate word for filling the blank is why
• By using the above word in the sentence, the sentence becomes ' I can't think for any explanation why she should have reached so violently.  
• The word 'why' has been used as a linking word.
• The word 'why' has been used to link both the sentences given in the question
• The word 'why ' helps to change the sentence into a question type which is what the statement looks like.