There is hardly an environment on earth ______ some species of animal or other have not adapted successfully.
| A．to which | B．in which | C．for which | D．on which |
Don’t do that. It is impolite to play jokes _____ others.
| A．at | B．with |
| C．for | D．on |
Much to his _____, his father was not angry at the result of the examination.
| A．surprised | B．exciting |
| C．surprise | D．excited |
At the school gate, you should _____ the safeguard with your student card.
| A．present | B．give |
| C．show | D．provide |
Father insisted Tom _____ all his homework before he went to bed.
| A．finishing | B．to finish |
| C．finish | D．finished |
I met this guy _____ some other occasions but he did not seem to recognize me.
| A．for | B．on |
| C．at | D．in |