．Talented in skiing, he has hopes of being _______ for the national team.
| A．elected | B．offered | C．hired | D．selected |
In the 16-19 age group，1 of women smoke ______ 8 of men.
| A．comparing to | B．comparing with |
| C．compared to | D．compare with |
Though ______, many laws of nature exist.
| A．not having been discovered | B．having not been discovered |
| C．not having discovered | D．having not discovered |
While prices are rising so fast，many people are working out ways to________their expenses.
| A．cut down | B．put down | C．turn down | D．settle down |
The course about Chinese food attracts over 100 students per year, ________ up to half are from overseas.
| A．in which | B．for whom | C．with which | D．of whom |
here yesterday, he could have seen Jackie Chen.
| A．If Bob has come | B．If Bob came |
| C．Had Bob come | D．If Bob should come |