Сhoose the correct verb form. 1) they have been writing/ have written a letter for an hour. 2) my sister has had/has been having a car for a year. 3) we have been playing / have played volleyball since morning. 4) she has understood / has been understanding english since 13 years. 5) i have been learning/ have learnt german for 5 years
2) My sister has had a car for a year.
3) We have been playing volleyball since morning.
4) She has understood English since 13 years.
5) I have been learning German for 5 years