... following passage.In 1860, London was a large city of two and a half million people. By 1910, London was the biggest city in the world (18)…… a population of five million. (19)…… those fifty years, ... waiting so long.A. to me for B. for keeping me C. for me keeping D. for me9. His parents insisted ………… a medical training course.A. on taking B. on him to take C. him to take D. on taking him10. ... apologised11. He …………. me of not paying attention to what he said. A. insisted B. accused C. thanked D. warned12. Its population has ………… from 1.2 million to 1.8 million.A. decreased B. fell C. dropped...