For safety, Internet users are advised to

• A、test shared Internet access
  
  

• B、rely on paid Internet access
  
  

• C、look for free Internet access
  
  

• D、avoid shared Internet access
  
  

下面的短文有10处空白，每处空白后的括号内有一个词，请根据短文内容将其正确的形式填入文中，以恢复文章原貌，并将答案写在答题卡相应的位置上。 

Achieving Success in a Presentation

What can they get from 41.        (spend) time listening to your presentation? Many people think that they need to be brilliant to present well. They think they need to be smart, witty, and42.        (charm)before they start to write a speech. Those qualities can come 43.        (natural), but most often, they come as the result of the passion and knowledge of the 44.        (speak). One of the vital factors in having an 45.         (effect) presentation is serving the needs of your audience. Caring for your audience's needs 46.        (require) no perfection. You can make 47.        (mistake) and it's going to be 0K. The 48.        (equip) can fail and it's still going to be OK. You don't have to use humor to be a 49.        (win) with that in mind, the real point is more like being successful at 50.       (reach) your audience.

Shadel uses public WIFI to

• A、learn about VPN
  
  

• B、deal with his emails.
  
  

• C、keep his account safe
  
  

• D、handle financial matters