2. Choose the right word. 1. Hitler invaded/improved/supplied Poland on September 1, 1939. 2. The policeman threatened/invaded/improved/succeded to take them to court. 3. His voice sounded threatening/successful/invading/supplying. 4. The Romans invaded/succeeded/supplied Britain 2000 years ago. 5. Scientists have invaded/improved/threatened/succeeded in fi nding a new medicine. 6. You could use the money for improving/painting/decorating your home. 7. The old man supplied/improved/invaded the police with important information.