Usually there might be a lot of accidents in the heavy fog.I happened to witness ________ this morning.
| A．it | B．those |
| C．each | D．one |
Tom along with his classmates ______ for the coming exam.
| A．are preparing | B．are preparing themselves |
| C．is preparing him | D．is preparing himself |
The garden looks more beautiful ____ a lot of flowers coming out.
| A．for | B．with | C．because of | D．as |
I’m afraid this is the best way ____we can think of ____you.
| A．that; helping | B．that; to help |
| C．which; helping | D．which; to help |
All the universities have duty to _______ their students ____of the quick development of the scientific world.
| A．make; known | B．have; understood |
| C．keep; informed | D．find; included |
I _______ spend the Saturday afternoon with my old friends in the zoo, but they did not come.
| A．was going | B．was to | C．will | D．was about to |