Question: on saturday it will be cloudy, but mostly dry until noon. at noon mostly sunny weather will prevail.
Answer: --> On Saturday it will be cloudy, but mostly dry until noon. At noon mostly sunny weather will prevail.

Question: the object of his architectural researches, however, was not to learn to reproduce roman architecture, but to enrich the architecture of his own time and to perfect his engineering skills.
Answer: --> The object of his architectural researches, however, was not to learn to reproduce Roman architecture, but to enrich the architecture of his own time and to perfect his engineering skills.

Question: "according to our data throw your letter was posted on 31.10.2007 be issued to the recipient's mailbox.
Answer:
--> "According to our data throw your letter was posted on 31.10.2007 be issued to the recipient's mailbox.