Select the most appropriate option to fill in the blank and make a grammatically correct sentence.

Kevin lives by the sea and he’s got a boat, so he often ________ sailing.

goes

The most appropriate option to fill in the blank is goes.

The sentence is in the present tense, and the verb "to go" needs the present simple form. The present simple form of "to go" is "goes."

The other options are not grammatically correct.

• Is going is the present continuous tense form of the verb "to go." It is not the correct tense to use in this sentence, because the speaker is not talking about something that is happening right now.
• Go is the infinitive form of the verb "to go." It is not the correct tense to use in this sentence, because the speaker is not talking about something that is happening repeatedly or over a period of time.
• Has gone is the present perfect tense form of the verb "to go." It is not the correct tense to use in this sentence, because the speaker is not talking about something that happened in the past and has a connection to the present.