問問關於英文文法既野

完全沒錯：
Tense 正確
Grammar 正確
句子意思合理

OPTIONAL:
Mary has just died. (啱啱的事)

HOPE I CAN HELP YOU ^_^

speaking time=11;20:03-11:20=00:03
the present perfect:-has died
Hence eg:-Mary has died since 11:20
My speaking time is 00:03 for her death.
She liked playing badminton before her death.
=The simple past. It began and completed in the past without any connection with the present.eg:-liked.
We use (for) when we refer to a period of time and (since) when we refer to a point of time in the past.
The verbs (has died) denote actions that are completed recently.Note that the words (just) and (already) are used. (1)Mary has just died.(2)Mary has already died. (Just) is used to mean the immediate past while (already) indicates completion.

無錯。
因為Mary 係11:20分死亡,而係11:20:03秒講Mary has died.係啱ge
3秒後都係用pp tense!
She liked olaying badmintion.已經係Mary生前的事,所以用Past tense。