e ttle rs\r6. By the time he arrives in Beijing, we here for two days.\rA . have been staying B. have stayed C. shall stay D. will have stayed\r1. The millions of calculations involved, had they been done by hand,\ra ll practical value by the time they were finished,\rA, had lost B. would lose C. would have lost D. should have lost\r8, Fifty years ago, wealthy people liked shooting wild animals for fun\rsightseeing.\rA. than to go B. rather than to go C. more than going I), other than going\r9, With the development in science and technology man can make various\rflowers before th eir time.\rA . be bloomed B. blooming C. bloom D. bloomed\r10. In recent years much more emphasis has been put developing\rstudents' learning sk ills.\rA. over B. onto C. in D. on