Which adverb correctly completes the sentence: 'She arranged the flowers ______ to decorate the room.'
答案解析
**Core Concept**: Adverb usage to modify verbs.
**Analysis**: The adverb 'beautifully' modifies the verb 'arranged'. 'Beautiful' (adjective) cannot modify a verb. 'Beauty' (noun) and 'beautify' (verb) are grammatically incompatible.
**Key Hint**: Adverbs ending with '-ly' often modify verbs.
**Error Analysis**: A. Adjective error; C/D. Wrong part of speech.
正确答案：B