Ex1: Choose the best answer to complete each of the following sentences. 1. We..........a project to improve the living conditions for homeless people two days ago. They.........in difficult conditions for a long time. A. attended/ lived B. have attended/ lived C. attended/ have lived D. have attended/ have lived 2. My mother......dinner at home because she.......to care for mygrandma in the hospital last evening. A. didn't eat/ had B. ate/ had C. hasn't eaten/ had D. has eaten/ has