Michael __________ here to see you and he____________ a note on your desk.
| A．has come; had left |
| B．has been; has left |
| C．has come; left |
| D．has been; left |
The government plans to bring in new laws parents to take more responsibility for the education of their children.
| A．forced |
| B．forcing |
| C．to be forced |
| D．having forced |
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 |
He had a wonderful childhood, with his mother to all corners of the world.
| A．travel |
| B．to travel |
| C．traveled |
| D．traveling |
many times, he finally understood it.
| A．Told |
| B．Telling |
| C．Having told |
| D．Having been told |
They use computers to keep the traffic smoothly.
| A．being run |
| B．run |
| C．to run |
| D．running |