Meaning: 'Founded' means to establish or set up something, in this case, the Durham University Sailing Boat Club.

Wrong options:

• found: 'Found' is the base form of the verb and does not fit grammatically with 'was' which requires a past participle.
• fund: 'Fund' is a noun or verb related to providing financial resources, which does not relate to the establishment of the club.
• find: 'Find' is also a base form verb meaning to discover, which does not fit the context of establishing the club.

Correct answer: grown

Explanation: The word 'grown' is the past participle form of 'grow,' which is required here to indicate the club's development over time. It fits grammatically with 'has' to form the present perfect tense, indicating an action that started in the past and continues to the present.

Meaning: 'Grown' means to have increased in size, number, or strength, indicating the club's steady development over the years.

Wrong options:

• grow: 'Grow' is the base form of the verb and does not fit with 'has' which requires a past participle.
• growing: 'Growing' is the present participle form and does not fit the grammatical structure needed here.
• has grown: This option is incorrect because 'has grown' would require a different structure in the sentence.

Correct answer: enjoying

Explanation: The word 'enjoying' is the present participle form of 'enjoy,' which fits grammatically as it describes the ongoing action of students participating in sailing. It aligns with the context of the sentence, indicating what students are currently doing.

Meaning: 'Enjoying' means taking pleasure in an activity, in this case, sailing as a sport and social activity.

Wrong options:

• enjoy: 'Enjoy' is the base form of the verb and does not fit grammatically in this continuous context.
• enjoyed: 'Enjoyed' is the past tense form and does not convey the ongoing action required here.
• are enjoying: This option is incorrect because 'are enjoying' would change the structure of the sentence.

Correct answer: and

Explanation: The word 'and' is a conjunction that appropriately connects two related ideas, indicating that sailing serves both as a sport and a social activity. This fits grammatically and contextually within the sentence.

Meaning: 'And' is used to connect words or phrases of the same type, in this case, linking two activities that students engage in.

Wrong options:

• as: 'As' is a preposition that does not fit the context of connecting two equal activities.
• or: 'Or' suggests an alternative, which does not apply here as both activities are included.
• before: 'Before' indicates a time relationship and does not fit the context of listing activities.