I. Fill in the space in the sentences using the base word given in bold at the end. 1. This queue hasn't moved in five minutes. I'm getting a bit .................! (PATIENT) 2. .................. should spend some time living on the streets like homeless people have to and then they would understand better the problems they have. (POLITICS) 3. Are you sure you have cleaned the kitchen? The is still a pretty ............. smell coming from it. (PLEASANT) 4. Finding a cure of cancer will be a huge .................. breakthrough for mankind. (MEDICINE) II. Use the correct form of the words given to complete the sentences. 1. Most people agree that computers are the most important ............. of the twentieth century. (INVENT) 2. In the 1970s the silicon chip was invented because this ................ device could store a large amount of information in a very small space. (ELECTRIC) 3. Some computer .................. believed that people might like to have computers in their homes, offices and school. (MANUFACTURE) 4. Computers are now being used in a wide ............... of fields, from banking to space travel. (VARY)