No one in the department but Tom and I _________ that the director is going to resign.
| A．knows | B．am to know |
| C．know | D．have known |
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 |
________one of you breaks the window will have to pay for it.
| A．Whoever | B．Whatever |
| C．Whichever | D．Wherever |