I wonder when it was __________ you came to realize __________ he said meant.
| A．that; what | B．what; that | C．what; what that | D．that; what what |
Once __________, the play was well received by the public.
| A．perform | B．performing |
| C．performed | D．to perform |
__________ more time, they will do a better job.
| A．Having given | B．To give | C．Giving | D．Given |
__________ with such a difficult problem, he decided to ask for some good advice from his colleagues.
| A．Having faced | B．Face |
| C．Faced | D．To have faced |
The leader came into the room, __________ by his two assistants.
| A．following | B．follow | C．followed | D．to follow |
__________ by the heavy rain, the area was flooded seriously.
| A．Stricken | B．Striking |
| C．To strike | D．To be stricken |