С! paraphrase the following sentences using the complex subject with the infinitive. 1. "oh, i didn't hear you come in." – "i came to see if i could be of any help to you," said race. 2. a voice on the stairs behind made us all start. 3. "it seems that you know a lot of robinson," tom wells observed. 4. it was so wonderful to see old george. it seems he needs a friend. 5. it appeared that they were coming down when i left the room. 6. it appeared that he did not see at all why he should explain his disappearance. 7. it is unlikely that he will come and see us soon. 8. i think, it is likely that peter will make that mistake. 9. it is believed he is clever. 10. they say that he is the best teacher at our school. 11. it happened that i mentioned your brother's name. 12. it happened that i knew eliza's brother well.