✔ 最佳答案
如果你話, Mary 到現在都收唔到,
你會話Mary has not received the letter.
如果你話, Mary 已經收到,
你會話Mary received the letter.
(用過去式, 因為重點係 Mary 已經收到, 唔適合用 perfect tense 去強調個時間問題)
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不過其實都唔係好明你問咩~
Tom封信係Mary 個朋友度,
Mary 個朋友睇左封信,
之後俾返Mary
甘 Mary 係過程之中無睇過封信wo
May has not read the letter.