Select the most appropriate option to fill in blank no. 1.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. knew.
Context: The sentence is about Suren thinking during the lockdown that people would still need platelets. He was not in Mumbai but he understood or was sure that the need would still be there.
Meaning of the word ‘knew’: Knew is the past tense of know, which means to understand or be sure about something.
Hence, the chosen option will be correct.