—Why? Where is the key to the sound lab?
—Dear me! You _____ it in the taxi！
| A．have never left | B．haven’t left |
| C．never left | D．didn’t leave |
_____ with any common sense can tell the difference between the two.
| A．Who | B．Whoever |
| C．Anyone | D．Who ever |
When a pencil is partly in a glass of water, it looks as if it ______.
| A．breaks | B．has broken |
| C．were broken | D．had been broken |
. You didn’t let me drive. If we ____ in turn, you ____ so tired.
| A．drove; didn’t get | B．drove; wouldn’t get |
| C．were driving; wouldn’t get | D．had driven; wouldn’t have got |
Yesterday, Jane walked away from the discussion. Otherwise, she ____ something she would regret later.
| A．had said | B．said |
| C．might say | D．might have said |
If only he _______ quietly as the doctor instructed, he would not suffer so much now.
| A．lies | B．lay |
| C．had lain | D．should lie |