определите в них видовременные формы глаголов и укажите их инфинитив. The first electronic machines appeared in 1945 in America.
We are prevent and detect crime.

ylay88: In 1980 the best sportsman from five continents met in Moscow.
Practical work is an essential part of University education.
Last year my friend headed the research work at the Institute.
A group of foreign students will arrive at our city in five days. помоги ещё я английский вобще не знаю