C demonstrating aboutD No improvement
Answer: B
Explanation:‘Demonstration‘ is a noun which should be used after of. Hence, option Bis the correct answer.
Question 11In the following question, out of the given alternatives, select the alternative which will improve the bracketed part of the sentence. In case noimprovement is needed, select "No improvement."Only extraordinary and exceptional strength of judgment in the individual can actually (advances) science.A advance
B advanced
C been advancedD No improvement
Answer: A
Explanation:‘Can’ is followed by the present form of verb. Hence, option A is the correct answer.
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