1. The expedition is said to has been reached Vladivostok (не уверена)
2. He is known to have a large collection of pictures
3. The play seems to make a deep impression on him
4. He was proved to be a very experienced worker
5. The face seemed to be unchanged
6. The sins of the world seemed (to him) to be passing in dumb
7. She seemed to know so little about acting
8. She seems to be quite cintent with her life
9 и 10 не знаю, поэтому писать догадки не буду