Meaning: To 'reflect' means to show or demonstrate something, in this case, the changes in society.

Wrong options:

• occur: The verb 'occur' means to happen or take place, which does not fit the context of describing how architecture shows societal changes.
• structure: The noun 'structure' refers to a building or construction, which does not fit grammatically as a verb in this context.
• along: The preposition 'along' indicates a position or direction, which does not fit the grammatical structure needed here.
• date: The verb 'date' means to determine the time something was made or built, which does not convey the idea of showing changes in society.
• century: The noun 'century' refers to a period of one hundred years, which does not fit as a verb in this context.
• expansion: The noun 'expansion' refers to the act of increasing in size or scope, which does not fit grammatically as a verb.

Correct answer: throughout

Explanation: The preposition 'throughout' indicates that the changes in Catalan society occurred during the entire span of its 2000-year history. It fits contextually as it emphasizes the continuity of these changes over time.

Meaning: 'Throughout' means in every part of a place or during the whole of a period.

Wrong options:

• expansion: The noun 'expansion' refers to the act of increasing in size or scope, which does not fit as a preposition in this context.
• along: The preposition 'along' indicates a position or direction, which does not convey the idea of continuity over time.
• century: The noun 'century' refers to a period of one hundred years, which does not fit as a preposition in this context.
• date: The verb 'date' means to determine the time something was made or built, which does not fit grammatically as a preposition.
• occur: The verb 'occur' means to happen or take place, which does not fit the grammatical structure needed here.
• reflect: The verb 'reflect' does not fit as it does not serve as a preposition and does not convey the idea of continuity.

Correct answer: date

Explanation: The verb 'date' is used here to indicate when the Gothic cathedral was built. It fits grammatically as it is in the present tense and aligns with the context of discussing historical timelines.

Meaning: To 'date' means to determine the time something was made or built.

Wrong options:

• reflect: The verb 'reflect' means to show or demonstrate something, which does not fit grammatically as it does not indicate a time period.
• structure: The noun 'structure' refers to a building or construction, which does not fit grammatically as a verb in this context.
• occur: The verb 'occur' means to happen or take place, which does not fit the context of determining when something was built.
• along: The preposition 'along' indicates a position or direction, which does not fit the grammatical structure needed here.
• century: The noun 'century' refers to a period of one hundred years, which does not fit as a verb in this context.
• expansion: The noun 'expansion' refers to the act of increasing in size or scope, which does not fit grammatically as a verb.

Correct answer: century

Explanation: The noun 'century' refers to a period of one hundred years and is used here to specify the time frame of the city's glory. It fits grammatically as a noun that complements the context of discussing historical periods.

Meaning: A 'century' is a period of one hundred years.

Wrong options:

• reflect: The verb 'reflect' does not fit as it does not serve as a noun and does not indicate a time period.
• structure: The noun 'structure' refers to a building or construction, which does not fit the context of discussing a time period.
• occur: The verb 'occur' means to happen or take place, which does not fit grammatically as a noun in this context.
• along: The preposition 'along' indicates a position or direction, which does not fit the grammatical structure needed here.
• date: The verb 'date' means to determine the time something was made or built, which does not fit as a noun in this context.
• expansion: The noun 'expansion' refers to the act of increasing in size or scope, which does not fit grammatically as a noun.

Correct answer: expansion

Explanation: The noun 'expansion' refers to the act of increasing in size or scope, which fits contextually as it describes the growth of the city during the period of modernism. It fits grammatically as a noun that complements the overall discussion of the city's development.

Meaning: 'Expansion' means the process of increasing in size, number, or importance.

Wrong options:

• reflect: The verb 'reflect' does not fit as it does not serve as a noun and does not indicate growth.
• structure: The noun 'structure' refers to a building or construction, which does not fit the context of discussing the growth of the city.
• occur: The verb 'occur' means to happen or take place, which does not fit grammatically as a noun in this context.
• along: The preposition 'along' indicates a position or direction, which does not fit the grammatical structure needed here.
• century: The noun 'century' refers to a period of one hundred years, which does not fit as a noun describing growth.
• date: The verb 'date' means to determine the time something was made or built, which does not fit as a noun in this context.