Английский, 8 номер

1. has been living , for 2 has been teaching, since 3 has been working, since 4 have been playing, since 5 have been studying, for 6 haven't seen, for 7 haven't heard, since 8 have been knowing, since 9 has been, since 10 has been working, since 11 have been having, since 12 haven't seen, for 13 haven't spoken, since  14 has been playing, for