$\text{1.}$ is situated
$\text{2.}$ was made
$\text{→}$ in + năm chia QKD
$\text{3.}$ will be built
$\text{→}$ in the near future chia TLD
$\text{4.}$ are being taken
$\text{→}$ Look! chia HTTD
$\text{5.}$ has been cleaned
$\text{→}$ already chia HTHT
-----------------------------------------
$\text{1.}$ A letter was written in English by her last night.
$\text{→}$ Thì QKD: S + was/ were + PP + (by)
$\text{2.}$ A house is being made for his dog now.
$\text{→}$ Thì HTTD: S + is/ are/ am + being + PP + (by)
$\text{3.}$ A lot of sourvenirs are sold inside the Temple of Literature.
$\text{→}$ Thì HTD: S + is/ are/ am + PP + (by)
$\text{4.}$ Some photos have been taken by my brother today.
$\text{→}$ Thì HTHT: S + have/ has + been + PP + (by)
$\text{5.}$ The tower can be seen from 100kms away.
$\text{→}$ Với Modal Vs: S + Modal Vs + be + PP + (by)
