Meaning: 'Radically' means in a way that is very different from the usual or traditional.

Wrong options:

• completely: 'Completely' is an adverb that suggests totality, which does not appropriately modify 'different' in this context as it lacks the nuance of significant change.
• anywhere: 'Anywhere' is an adverb indicating location, which does not fit the context of describing differences in writing systems.
• apart: 'Apart' is an adverb that indicates separation but does not convey the degree of difference required here.
• but: 'But' is a conjunction used to introduce a contrast, which does not fit as it does not modify 'different.'
• often: 'Often' is an adverb indicating frequency, which does not relate to the degree of difference in writing systems.

Correct answer: apart

Explanation: The word 'apart' functions as an adverb indicating separation or distinction. It fits grammatically and contextually as it highlights the few extra symbols that differentiate French from English.

Meaning: 'Apart' means separated by a distance or distinction.

Wrong options:

• completely: 'Completely' suggests totality, which does not accurately describe the minor differences in symbols between the two languages.
• but: 'But' is a conjunction that introduces contrast, which does not fit the context of describing the relationship between French and English writing systems.
• so: 'So' is an adverb that indicates a consequence, which does not fit the context of distinguishing writing systems.
• radically: 'Radically' indicates a significant difference, which does not apply to the minor distinctions in symbols here.
• often: 'Often' indicates frequency, which is irrelevant to the context of writing systems.

Correct answer: so

Explanation: The word 'so' serves as a conjunction that indicates a result or consequence, linking the ease of learning French to its similarity to English. This fits grammatically and contextually as it connects the two clauses effectively.

Meaning: 'So' means to such a great extent or in such a way that it leads to a particular result.

Wrong options:

• completely: 'Completely' does not fit as it does not indicate a causal relationship between the writing systems and the ease of learning.
• apart: 'Apart' indicates separation but does not logically connect the ease of learning to the writing systems.
• but: 'But' introduces contrast, which does not fit the context of explaining the ease of learning French.
• radically: 'Radically' suggests a significant difference, which does not logically connect to the ease of learning French in this context.
• often: 'Often' indicates frequency, which does not relate to the cause-and-effect relationship being described.

Correct answer: completely

Explanation: The word 'completely' functions as an adverb that modifies 'different,' indicating total difference in writing systems. This fits grammatically and contextually as it emphasizes the extent of the difference between the writing systems of Japanese or Hindi compared to French and English.

Meaning: 'Completely' means totally or entirely, indicating a full distinction.

Wrong options:

• apart: 'Apart' indicates separation but does not convey the totality of difference required in this context.
• but: 'But' is a conjunction that introduces contrast, which does not fit the context of describing the differences in writing systems.
• so: 'So' indicates a result, which does not apply to the description of writing systems.
• radically: 'Radically' suggests a significant difference but does not convey the totality of difference as effectively as 'completely.'
• often: 'Often' indicates frequency, which is irrelevant to the context of writing systems.