Question

15. For the last year he (to go) to some classes at night.
16. Even after Glenn (to nod) to her, she (to continue) to look
as if she (not to know) whether to run away from him or
to walk back down the corridor to where he (to stand).
(Caldwell)
17. Miss Casement stopped what she (to do) and (to stare)
at Ranisborough. (Murdock)
18. I never (to insult) so in my whole life.
19. The storm grew worse and worse, and the rain (to fall)
in torrents, and little Hans (can not, to see) where he (to
go). (Wilde)

Answer 1

15.he is going
16.nodded        she is continuing     don"t know       he is standing to Caldwell
17.is doing stairing
18.insult
19.is falling        can"t see      is going to Wilde