Meaning: 'Adjoining' means being next to or adjoining something.

Wrong options:

• significant: 'Significant' is an adjective that means important or noteworthy, which does not fit the context of describing geographical proximity.
• common: 'Common' is an adjective that refers to something that is usual or prevalent, which does not describe a geographical relationship.
• expert: 'Expert' is an adjective that describes someone with a high level of knowledge or skill, which is unrelated to the context of regions.
• experimenting: 'Experimenting' is a gerund that refers to the act of trying out new ideas or methods, which does not fit the context of describing regions.
• unsuitable: 'Unsuitable' is an adjective that means not appropriate or fitting, which does not describe a geographical relationship.
• taking: 'Taking' is a gerund that refers to the act of receiving or obtaining, which does not fit the context of describing regions.
• affecting: 'Affecting' is a gerund that means having an influence on something, which does not relate to the geographical context.

Correct answer: common

Explanation: The word 'common' is an adjective that indicates something that is usual or shared among a group. In this context, it fits grammatically and contextually as it describes the relationship between wild crab apples and the apples we know today.

Meaning: 'Common' means something that is usual or prevalent.

Wrong options:

• significant: 'Significant' means important or noteworthy, which does not fit the context of describing a relationship between two types of apples.
• expert: 'Expert' refers to someone with a high level of knowledge or skill, which does not apply to the context of apples.
• adjoining: 'Adjoining' describes geographical proximity, which does not relate to the comparison of apples.
• experimenting: 'Experimenting' refers to trying out new ideas or methods, which does not fit the context of describing apples.
• unsuitable: 'Unsuitable' means not appropriate or fitting, which does not describe the relationship between the two types of apples.
• taking: 'Taking' refers to the act of receiving or obtaining, which does not fit the context of comparing apples.
• affecting: 'Affecting' means having an influence on something, which does not relate to the comparison of apples.

Correct answer: expert

Explanation: The word 'expert' is an adjective that describes someone with a high level of knowledge or skill in a particular area. In this context, it fits grammatically and contextually as it describes the level of skill involved in cider-making.

Meaning: 'Expert' refers to someone who has a high level of knowledge or skill in a specific area.

Wrong options:

• significant: 'Significant' means important or noteworthy, which does not describe the level of skill in cider-making.
• common: 'Common' refers to something usual or prevalent, which does not apply to the skill level in cider-making.
• adjoining: 'Adjoining' describes geographical proximity, which is unrelated to the skill level in cider-making.
• experimenting: 'Experimenting' refers to trying out new ideas or methods, which does not describe the skill level in cider-making.
• unsuitable: 'Unsuitable' means not appropriate or fitting, which does not describe the skill level in cider-making.
• taking: 'Taking' refers to the act of receiving or obtaining, which does not fit the context of skill in cider-making.
• affecting: 'Affecting' means having an influence on something, which does not relate to the skill level in cider-making.

Correct answer: unsuitable

Explanation: The word 'unsuitable' is an adjective that means not appropriate or fitting for a particular purpose. In this context, it fits grammatically and contextually as it describes the Roman varieties of apples in relation to the British climate.

Meaning: 'Unsuitable' means not appropriate or fitting for a specific purpose.

Wrong options:

• significant: 'Significant' means important or noteworthy, which does not describe the appropriateness of apples for the climate.
• common: 'Common' refers to something usual or prevalent, which does not apply to the suitability of apples for the climate.
• expert: 'Expert' describes someone with a high level of knowledge or skill, which does not relate to the suitability of apples.
• experimenting: 'Experimenting' refers to trying out new ideas or methods, which does not describe the appropriateness of apples for the climate.
• taking: 'Taking' refers to the act of receiving or obtaining, which does not fit the context of suitability.
• affecting: 'Affecting' means having an influence on something, which does not relate to the suitability of apples for the climate.

Correct answer: experimenting

Explanation: The word 'experimenting' is a gerund that refers to the act of trying out new ideas or methods. In this context, it fits grammatically and contextually as it describes what British monks were doing with new apple varieties.

Meaning: 'Experimenting' means trying out new ideas or methods.

Wrong options:

• significant: 'Significant' means important or noteworthy, which does not describe the action of monks with apples.
• common: 'Common' refers to something usual or prevalent, which does not apply to the action of monks.
• expert: 'Expert' describes someone with a high level of knowledge or skill, which does not relate to the action of monks.
• adjoining: 'Adjoining' describes geographical proximity, which is unrelated to the action of monks.
• unsuitable: 'Unsuitable' means not appropriate or fitting, which does not describe the action of monks with apples.
• taking: 'Taking' refers to the act of receiving or obtaining, which does not fit the context of monks experimenting with apples.
• affecting: 'Affecting' means having an influence on something, which does not relate to the action of monks.