Final answer:
The sentence 'Elle a ouvert la porte' is grammatically correct. It means 'She opened the door' in English.
Step-by-step explanation:
The sentence 'Elle a ouvert la porte' is grammatically correct. In this sentence, 'Elle' is the subject, which means 'she' in English. The verb 'a ouvert' means 'opened', and 'la porte' means 'the door'. So the sentence translates to 'She opened the door' in English.
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