____ of their bad habits, the boys switched from being dependent on their parents to ____ for others.
| A．Having rid; sacrificing | B．Rid; sacrificing |
| C．Having been rid; sacrifice | D．To rid; sacrifice |
---Mrs. Smith, please teach me how to draw on the computer today.
---Oh, no. ____________. You have to get familiar with the keyboard first.
| A．Think twice before you do | B．All things are difficult before they are easy |
| C．Learn to walk before you run | D．Don’t count your chickens before they are hatched |
．Good job! Not a single mistake ______ in your homework.
| A．you made | B．made you | C．did you make | D．you did make |
If you ______ half an hour every day for English reading, you are sure to improve your reading ability.
| A．set aside | B．put away | C．take up | D．give off |
Hi, somebody ______ the window, please. It’s too cold in here.
| A．closes | B．close | C．will close | D．is closing |
．______ you think you can or not, you must finish the project before Friday.
| A．If | B．Unless | C．Though | D．Whether |