There is a crowd of people in front of the house over there. What do you suppose
_____ there?
| A．is happened | B．has happened |
| C．happening | D．to have happened |
_____ hearing the news, I was wild ____ joy.
| A．At, in | B．On, with | C．After, by | D．/, over |
My father began to work ____ a bus driver when he was twenty years old.
| A．for | B．to | C．at | D．as |
This is a common mistake ____ students.
| A．between | B．over | C．among | D．about |
If you run ____ two hares you will catch neither.
| A．into | B．after | C．off | D．out of |
His grandfather died ____ the wound that the enemy soldier had given him .and then his grand-
mother died ____ hungry and cold.
| A．from,of | B．of,from | C．from,from | D．of.of |