I.
1b have been typing
2a has been cooking
2b have cooked
3a have built
3b have been building
II
2 told 3 asked 4 said 5 arrived 6 have been staying 7 have never visited 8 have been swimming 9 arrived 10 suggested 11 agreed 12 noticed 13 were 14 were 15 remembered 16 came 17 asked 18 waved