He . . . . . . . . a lot of reading in his free time? A. does B. is C. reads D. dose not

The correct answer is C. reads.

The sentence is in the present tense, so the verb must also be in the present tense. The verb “does” is in the present tense, but it is used to form the negative and interrogative forms of the verb “to do.” The verb “is” is in the present tense, but it is used to be a linking verb, not a main verb. The verb “dose” is not a word in the English language.

The sentence is about what He does in his free time. The only verb that makes sense in this context is “reads.”