Correct Answer:
A. more
The error in the sentence 'She is more taller than her sister' is A: more. This sentence contains a common grammatical mistake known as a double comparative.
In English, adjectives form their comparative degree in one of two ways:
- By adding -er to the end of short adjectives (e.g., tall -> taller, fast -> faster, big -> bigger).
- By placing more before longer adjectives (e.g., beautiful -> more beautiful, intelligent -> more intelligent, difficult -> more difficult).
You should never use both methods simultaneously. 'Taller' is already the comparative form of the adjective 'tall'. Adding 'more' before 'taller' creates redundancy and is grammatically incorrect. It's like saying 'more faster' or 'more bigger'.
The correct sentence should be: 'She is taller than her sister.'
- B: taller is the correct comparative form of 'tall' and is appropriate for the comparison.
- C: than is correctly used to introduce the second element in a comparison.
- D: her sister is grammatically correct as the object of comparison.
The word 'more' is superfluous and creates the error in this sentence.