________ to sunlight for too much time will do harm to one’s skin.
| A．Exposed | B．Having exposed | C．Being Exposed | D．After being exposed |
—Jane, see, what did I find?
—Oh, my lost keys! ____.
| A．where did you find it? |
| B．I’m really grateful for you |
| C．What a nice temper you have |
| D．I can’t thank you enough |
Jack, it’s __ bad manners to blow your nose at ___ table.
| A．the; a | B．the; / | C．/; the | D．/; / |
— What terrible weather! It ___ for more than a week!
—The rain season will last about a month.
| A．rains | B．will be raining |
| C．rained | D．has been raining |
I was ___ in the middle of my call because I had no more pennies to put in the box.
| A．broken in | B．cut off |
| C．hung up | D．put down |
Once ___ what to do, these computers will show great power in carrying it out.
| A．to teach | B．teaches | C．teaching | D．taught |