a surprise test given without warning
неожиданный тест, проведенный без предупреждения (neozhidannyy test, provedenyy bez preduprezhdeniya)
"Our teacher gave us a pop quiz today."
"Наш учитель дал нам поп квиз сегодня." (Nash uchitel' dal nam **pop kviz** segodnya.)
to be upset about something that cannot be changed
it's very easy
to make a special effort to help someone
to do the same work or live the same way as someone else, us...
to make a lot of progress or improvement
to record information on paper
