Four and __________ half hours of discussion took us up to midnight, and we had __________ break for cheese, chocolate and tea with sugar.
| A．a; a |
| B．the; the |
| C．不填；the |
| D．a; 不填 |
__________ many times, he finally understood it.
| A．Being told | B．Telling | C．Having been told | D．Having told |
Every evening after dinner, if not ___________ from work, I will spend some time walking my dog.
| A．being tired | B．tiring | C．to be tired | D．tired |
---- My leg hurts a lot
----You'd better go to the doctor and have it ____.
| A．examined | B．being examined | C．to be examined | D．examining |
Mary went to the box office at lunch time, but all the tickets __________ out.
| A．would sell | B．had been sold | C．have been sold | D．was selling |
News came from the office __________ Wang Lin had been admitted to Beijing University.
| A．which | B．what | C．that | D．where |