Put in the right prepositions: at, against, of, to, out of,

Put in the right prepositions: at, against, of, to, out of, up, with. 1. Jemma was staring ... ... the window. 2. Never point your finger ... people. It39;s impolite. 3. Does do your dog bark ... people in the street? 4. -I think it39;s Peter who has broken the computer. - Oh, no. I39;m sure you are barking ... the wrong tree. 5. Sometimes animal keepers beat them ... sticks. I hate it. 6. If I were you I wouldn39;t stare ... people even if they look strange.