Use the right pronoun to complete the sentences.
1 Pete is ill. He asked me to hand in _ _ _ paper.
2 Do you see that man? Do you know _ _ _?
3 I don't recognize these boys. Have you ever met _ _ _?
4 Ann, have you found the article? Have _ _ _ translated _ _ _?
5 My dog Rex is here. But where is _ _ _ dog - collar?