Select the most appropriate option to fill in the blank. He is an/a________ reader of mystery books.

Explanation

The correct answer is:avid Key Points Avidmeans having or showing a keen interest in or enthusiasm for something. Example -She was avid for information about the murder inquiry. Here, in the given sentence 'Avid' is used to explain the habit that the boy had a great interest in reading mystery books . So, it is clear that the most appropriate word is 'A vid '. Therefore, the correct answer is option 4 . Correct Sentence:He is anavidreader of mystery books. Additional Information Fragilemeans easily broken or damaged. Agilemeans quick and well-coordinated in movement. Alertmeans quick to notice any unusual and potentially dangerous or difficult circumstances; vigilant.