Is there anyone in your class who ________ the car accident that happened in front of our school this morning?
| A．predicted | B．observed |
| C．introduced | D．witnessed |
Shakespeare’s play Hamlet________into at least ten different films over the past years.
| A．had been made | B．was made |
| C．has been made | D．would be made |
We ________ very early so we packed the night before.
| A．leave | B．had left |
| C．were leaving | D．have left |
If we________now to protect the environment，we’ll live to regret it.
| A．hadn’t acted | B．haven’t acted |
| C．don’t act | D．won’t act |
When I first met Bryan I didn’t like him，but I________my mind.
| A．have changed | B．change |
| C．had changed | D．would change |
It remains to be seen________the newly formed committee’s policy can be put into practice.
| A．that | B．which |
| C．what | D．whether |