Too high house prices can be brought under control, ________ the authorities introduce a series of regulatory policies.
| A．even if | B．as if |
| C．so that | D．provided that |
Liu Ming is said abroad for one year before he came to teach in our school．
| A．to have studied | B．to study |
| C．to be studying | D．to have been studying |
The boy lost his key, so he has no choice but till his mother came home．
| A．waited | B．waiting | C．wait | D．to wait |
Nick is looking for another job because he feels that nothing he does ________ his boss.
| A．serves | B．satisfies | C．promises | D．supports |
--Mary, I think you had better say sorry to John．
--．It was his fault, NOT mine!
| A．Not possible | B．No way | C．No chance | D．Not at all |
For a long time, he hesitated whether he should tell us ____ what had happened．
| A．at dusk | B．at length | C．at present | D．at stake |