How English came into being as a national language in the historial aspect of English literature.
大神们求指导

Meanwhile across the North Seathe three Germanic tribeswhich were destined to form the main element in the English race weremultiplying and unconsciously preparing to swarm to their new home.
这句如果非要断句（加逗号）应该咋加呢

Meanwhile, across the North Sea, the three Germanic tribes, which were destined to form the main element in the English race, were multiplying and unconsciously preparing to swarm to their new home.
给你加了4个逗号

英语是古代传下来的

顶
lz