$\text{1. They will open the door from 7a.m to 8p.m next week}$
$\text{⇒The door will be opened from 7a.m to 8p.m next week.}$
$\text{Giải thích:}$
$\text{Động từ khuyết thiếu:S + will + be + V3/ed}$
$\text{2. Lan has learned English for 5 years}$
$\text{⇒English has been learned by Lam for 5 years.}$
$\text{Giải thích:}$
$\text{Hiện tại hoàn thành:S + have/has + been + V3/ed}$