1. at what time can i pick you out/up? 2. tim is responsible for/to booking the concert tickets. 3. we ordered delicious dishes in a restaurant, but liz was picking on/at her food. 4. mike is new to our class, that's why everyone is always picking him on/at. 5. excuse me! can u help me pick out/in a tie matches my shirt? 6. mr barnes has been working in/for mckinsey company for 17 years.