To read Tolstoy and ____ to the nineteenth century Russian literature are two excellent reasons for taking Professor Morrel’s course.
| A．to introduce | B．introduce | C．being introduced | D．to be introduced |
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 |
With Father’s Day around the corner ,I have taken some money out of the bank ______ presents for my dad.
| A． buy | B．to buy | C．buying | D．to have bought |
Mrs.White showed her students some old maps ______ from the library.
| A．to borrow | B．to be borrowed | C．borrowed | D．borrowing |