-----Where is my key? I remember I put it here yesterday.
--------You ______ it in the wrong place.
| A．must put | B．should have placed | C．might put | D．might have put |
Noise is unpleasant, ________ when you are trying to sleep.
| A．seriously | B．specially |
| C．especially | D．naturally |
It's quite warm here; we ________ turn the heating on yet.
| A．needn’t | B．mustn't |
| C．couldn’t | D．wouldn't |
Close the door of fear behind you, and you ____ the door of faith open before you.
| A．saw | B．have seen |
| C．will see | D．are seeing |
Sarah made ______ to the airport just in time to catch her plane this morning.
| A．herself | B．this | C．that | D．it |
Now more and more workers ______their free time trying to improve themselves at school or college.
| A．take | B．cost | C．spend | D．pay |