有Present Perfect Tense 問題一問

首先 你係上個星期六到Mary 被老師責駡 ‘上個星期六’係發生左既事 要用past tense
唔係Present Perfect Tense。
而Present Perfect Tense係‘當說及一些事件發生於以前，並繼續進行至現在’
至於你個句子其實係無問題既

it should be "Mary had been blamed."

2015-05-30 17:36:43 補充：
sorry. it should be "mary WAS blamed."
PAST TENSE. because it did happen. it is in the past

Mary has been blamed in sc. since (she was in sc.) last Sat.------The present perfect tense.