Вставте в предложение глаголы правильной формы.1) Oral tradition was very strong

Вставте в предложение глаголы правильной формы.
1) Oral tradition was very strong in early English culture and most literary works were written ( to perform )
2) Epic poems were very popular, and some, (to include) Beowulf, ( survive ) to the present day.
3) Beowulf is the most famous works in Old English, and has achieved national epic status in England, despite (set) in Scandinavia.
4) Nearly all Anglo-Saxon authors are anonymous: twelve (know) by name from medieval sources.
5) She does note, however, that some author, such as John Niles, have argued the work (invent) in the 10th century.