—Why are the tax collectors so busy?
—Many people prefer to have their tax forms completed by a professional rather than ___.
| A．do it themselves | B．doing it themselves |
| C．to do it themselves | D．done by themselves |
---I'd rather have some wine, if you don't mind.
---______．Don’ t forget that you’ll drive.
| A．By all means | B．Anything but that |
| C．Take it easy | D．I wouldn’t say no to this |
Hours of playing violent video games can affect the way the brain works, ______ damage to certain cells of brain.
| A．to cause | B．cause | C．causing | D．caused |
---What do you think is the matter with your car?
---Well, it _____ start at all. I mean I turned the key and nothing happened.
| A．shan’t | B．won’t | C．mustn’t | D．shouldn’t |
Women’s fashions are changing: One season they may favor pant-suits, but the next season they may prefer miniskirts.
| A．lately | B．shortly | C．relatively | D．constantly |
We can never expect _______bluer sky unless we create ______ less polluted world.
| A．a；a | B．a；the | C．the；a | D．the；the |