Hello! My name is David. I work for a construction company. I started working for this company in 2004. We build roads, dams, bridges and things like that. At the moment my company is producing a plan for a new motorway. I usually work in the road department, but this month I am working in the department that builds bridges. So my whole working day is different just now. I normally spend a lot of time out doors because I have to go to the construction sites. But with this new project I spend a lot of time in the workshop. Now I am testing a model of one of the new bridges. I enjoy it a lot because I have learned a lot of new things. Questions: 1. When did David begin working for his construction company? 2. What is his company doing at the moment? 3. Where does he usually work? 4. Is he working in the road department this month? Giải hộ em