______to the sun for too long can hurt your skin.
| A．Being exposed | B．To expose |
| C．Exposing | D．Exposed |
I wonder why you won’t do it as_______. Its the third time you have done so.
| A．told to | B．be told | C．told you | D．you told |
—Why do you want the book so much?
—_______, sir.
| A．Studying | B．Studies | C．Studied | D．To study |
—I hate talking with that guy. Look, he is coming. What should I do?
—Don’t speak until_______.
| A．speaking | B．spoken to | C．spoken | D．speaking to |
Little ____that we were watching his every move, so he seemed to be going his own way in this business.
| A．he realized | B．he didn’t realize | C．didn’t realize | D．did he realize |
----My room gets very cold at night.
---____________.
| A．So is mine | B．So mine is | C．So does mine | D．So mine does |