— The terrible accident is under investigation.
— Actually, quicker action _________ those workers trapped in the mine.
| A．may have saved | B．must have saved |
| C．should have saved | D．could have saved |
--What shall we do with our project, stop or continue, sir?
---________ and try to finish it _______.
| A．Go ahead with it; ahead of time | B．Go on doing it; before time |
| C．Go on to do it; ahead of time | D．Continue to do it; before the time |
To our ______, the result of the experiment is much better than we expected.
| A．relief | B．regrets | C．disappointment | D．sorrow |
— Remember the first time we met, Jim?
— Of course I do. You _______ in the library.
| A．have read | B．had read | C．were reading | D．read |
We hadn’t been out for long _________ she felt sick.
| A．as | B．while | C．after | D．before |
________ a little money, Jane was able to buy her mother a lovely new watch.
| A．To save | B．Saving | C．Having Saved | D．Saved |