Unit 1 1. What the boy likes to do most is putting together building blocks. 2.In terms of previous working experience, John is the best choice for this position. 3.My physics teacher often uses analogy to explain some difficult concepts. 4.With the help of his family and friends, Tom built up his publishing business bit by bit. 5.Linda was not able to go to that famous college, but she planned to start all over again rather than give up the challenge. 6.This company has a very good public image. People always associate its product with high quality and good service. Unit 2 1. The children were pretty annoyed that their parents won’t allow them to play around the railway track. 2. I bet if I pick up a little speed I will reach the destination sooner than they do. 3. You don’t want to go out in such rotten weather. It’s better for you to stay home and stretch your legs and do some physical exercises. 4. It’s half past ten, and you are not supposed to be sleeping! It’s time to head for the airport to pickup your cousin. 5. Who came up with the idea to ask Mike to take over the Project. 6.The school makes no distinction in treating students from different racial backgrounds. Unit 3 1. He is a qualified mechanic, but he winds up with a job in international trade. 2. He enrolled in an elementary computer training program in his spare time, but he fails to get through. 3. After the interviews, the principal chose several outstanding university graduates to work as teachers. 4. This contract is very important to our company. The more concrete it is, the better. I need to talk it over with my colleagues. 5. The boy suffers from severe leukemia and has to be transfer...