What is it that you mean or language and typ it English,Spanish or french so I can understand put mostly put it in English, please.
"As of noon Wednesday,..." That one. The others are too familiar or 1st person.
C - The Leaning Tower of Pisa, which started construction in 1173, did not begin sinking into the ground until the third story was built.
The use of commas sets off the dependent clause (which started construction in 1173).
That is an Americanism.
The correct standardized British form of the verb get is Get-Got-Got, however, in the US, gotten is the more used form of the past participle making it Get-Got-Gotten.