【F】評論
minimal pair:two words that vary by only a single sound(A) pat /pæt/; bat /bæt/(B) 堅強的 tough /tʌf/; 粗樹枝 bough /baʊ/ (讀音差異大)(C) either /ˈiː.ðɚ/ /ˈaɪ.ðɚ/ 兩種讀音,取前面; ether /ˈiː.θɚ/(D) peace /piːs/; peas /piːz/