The word which best completes the given sentence which says, "He spends most of his spare time with his_____" is:
According to the given sentence, we can see that there is a narrative about a person who spends most of his time reading.
As a result of this, there is the use of a popular phrase which is of a person who spends a lot of time reading to be said to have his face stuck in a book.
Therefore, the correct answer is option B
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