John was late for the business meeting because his flight had been___by a heavy storm
| A．kept |
| B．stopped |
| C．slowed |
| D．delayed |
We were astonished _______ the temple still in its original condition.
| A．finding | B．to find | C．find | D．to be found |
Though_________to see us, the professor gave us a warm welcome.
A. surprising B. as surprised C. surprised D being surprised
19. His first book next month is based on a true story.
| A．published | B．to be published | C．to publish | D．being published |
_____ from the top of the tower, the south foot of the mountain is a sea of trees .
| A．Seen | B．Seeing | C．Having seen | D．To see |
The retired man donated most of his savings to the school damaged by the earthquake in Yushu ,________the students to return to their classrooms.
| A．enabling | B．having enabled | C．to enable | D．to have enabled |