______ the net can be informative and useful, but it can also be rather expensive.

• Riding

• Reading

• Surfing

• Working

Each week at school, we learn a new ______ with the computer.

• experience

• qualifications

• skill  

• training

Most computers have enough ______ to store a large amount of information.

• room

• memory

• space

• disk

Teens may have access to the Internet through personal ______ like smart phones, but younger children still use the family computer to get online.

• information 

• instruments

• devices 

• document

You can find a lot of ______ information online for your project.

• usefulness 

• usefully 

• use 

• useful

They will ______ these new ideas to build robots that can think.

• access 

• save

• apply 

• install

Information Technology is used all over the world for the ______ of people.

• need

• profit

• benefit 

• interest

If your ______ is full, you can't download any more documents.

• file 

• software

• device

• hardware

One of the popular ______ used in smartphones at present is voice recognition.

• applicant

• applicable

• applications

• apply

Thomas Edison, Benjamin Franklin, James Watt are among of the greatest ______ of all time.

• inventions

• inventiveness

• inventors 

• invents