Answer:
during the 1870s and 1880s the vast majority of these people were from Germany, ireland,and england,the principal sources of immigration before the civil war.
Boundries because politics show different areas or regions of a place
Am irregular verb means that the different forms of the verb will differ and will not follow a regular pattern,
The pattern here should be:
I VERB, I VERB-ed, I will VERB
the first three options follow this pattern, so they are regular,
the correct answer is D. it is irregular: the past tense form is irregular.
During the 1945 conference in Potsdam,
the Big Three formalized the plan to divide Germany into four zones of occupation.
The Potsdam Conference<span> was held at </span>Cecilienhof<span>, the home of </span>Crown Prince Wilhelm Hohenzollern<span>, in </span>Potsdam<span>, </span>occupied Germany<span>, from 17 July to 2 August 1945.</span>