1. Sarah pretended to be cheerful, __________ (say) nothing about the argument.
2. On Oct. 15, 2003, I successfully flew to space, __________ (circle) around the earth about 14 circles and then returned.
3. At last, we found ourselves in a pleasant park with trees providing shade and _______ (sit) down to eat our picnic lunch.
4. Pressed from his parents, and __________ (realize) that he has wasted too much time, the boy is determined to stop playing video games.
5. __________ (see) from the top of the tower, the south foot of the mountain is a sea of trees.
6. The children went home from the grammar school, their lessons __________ (finish) for the day.
7. ___________ (drive) for five hours to the meeting, David learnt that it had been postponed.
8. ____________ (repair) by the workers, the library is not available right now.