✔ 最佳答案
We are pleased to inform you that
pleased 係 adjective,解樂意,唔係請。
其它三句:
We are please to inform you that:please 係動詞,連續兩個動詞時,第一個唔係 auxillary verb,又兩個都係原形,錯。
We are please to informed you that:除上面o既錯誤外,to 後o既動詞應用原形,呢度 informed 係 past tense,錯。
Please be informed you that:只有 please be informed that...,加左 you 後呢句由好好地o既 passive voice 變成不倫不類,錯。