_______, nobody was injured in the accident．
| A．As it may seem strange | B．Because it may seem strange |
| C．Strange as it may seem | D．Strange as may it seem |
At the beginning of class, the noise of desks______could be heard outside the classroom.
| A．opened and closed | B．to be opened and closed |
| C．being opened and closed | D．to open and close |
____in red , she looks very beautiful.
| A．Dressed | B．Dressing | C．Having dressed | D．Having been dressed |
Quickly ______himself, he ran out to the street.
| A．dressing | B．dressed | C．having dressed | D．having been dressed |
_____the program, they have to stay there for another two weeks.
| A．Not completing | B．Not completed |
| C．Not having completed | D．Having not completed |
The English are proud of the 30th Olumpic Games______in London in 2012.
| A．discussed | B．holding | C．held | D．to be held |