1. came to watch the liner return
2. thought him to be
3. declared the load to be
4. seems to know
5. proved to be
6. is considered to be
7. proved to be
8. are known to operate
9. were found to be
10. know them to be working
11. is known to have been brought
12. is supposed to have been invented
13. expected him to be appointed
14. appears to be
15. proved to be
16. found the people to be