P159~P164 Unit 3 Robots

P159~P164 Unit 3 RobotsⅠ.1-5 BDACC6-10 CCADD11-15 ABBDCⅡ.A1-4 CADDB1-3 ADBⅢ.1. Robots2. knowledge3. whatever4. mess5. untidy/dirty6. rubbish7. orders8. come9. worried10. earlierⅣ.1. started2. the3