Grammar: Using Neither Nor for Speaking Languages

This question tests the correct usage of correlative conjunctions, specifically for negative statements.

Understanding Correlative Conjunctions

Correlative conjunctions are pairs of conjunctions that work together to join words, phrases, or clauses. The pair 'neither...nor' is used to connect two negative ideas or items.

• It indicates that both of the things mentioned are not true or applicable.
• Example: She is neither tall nor short.

Applying to the Sentence

The sentence "Mr. X speaks __________ Japanese __________ Chinese" requires a conjunction pair that expresses negation for both languages. Applying the 'neither...nor' rule:

Mr. X speaks neither Japanese nor Chinese.

Analyzing Options

• Option 1 (neither / or): Incorrect pairing. 'Neither' should be followed by 'nor'.
• Option 2 (either / nor): Incorrect pairing. 'Either' is typically used with 'or' for choices, and 'either...nor' is grammatically incorrect for connecting two negatives.
• Option 3 (neither / nor): Correct pairing. This correctly forms a negative statement indicating Mr. X speaks neither of the two languages.
• Option 4 (also / but): These are coordinating conjunctions and do not fit the required negative correlative structure.

Therefore, the correct choice uses 'neither' and 'nor' to negate the speaking of both Japanese and Chinese.