Today we finished filling in the chart and commenting on it.
Both : sert à annoncer deux choses.
ex : Both war refugees and immigrants from the Third World now want to enter the US.
used to : sert à dire que quelque chose est passé et a changé.
(to) be allowed to : exprime l'autorisation.
ex : Ellis Island used to be an immigration station where people had to pass a series of tests (cf. the literacy test). If they were unhealthy, they were not allowed to get in the USA.
either ... or ... : sert à annoncer une alternative.
ex : When they arrived in Ellis Island, immigrants were either allowed to stay or they were sent back to their countries of origin.