Amva gives the best answers for a band 9 because she meets the expert level of English on all four criteria of the speaking interview: fluency and coherence, lexical resource, grammatical range and accuracy, and pronunciation.

Amva 的回答可以说是9分标准中最好的答案，因为她在口语面试的四个标准上——流利和连贯，词汇资源，语法范围和准确性，以及发音——都达到了专家水平。