Поместите глаголы в скобки в необходимых формах времени: Albert Einstein (to be) born in Germany. When he was 12, he (to begin) to
study mathematics and physics. Later he (to continue) his studies at the University.
Einstein (to present) his theory of relativity in 1905.
ответ:was,began,continued,had presented/presented
Объяснение: