Please post all the sentences.
1. Use of the iternet is very common.
2. The world Wide Web is an excellent research tool.
3. Different search engines are available to users.
4. The purpose of a search engine is to help users find information.
5. The person looking for information types key words into a search engine.
6. The search engine looks for web sites containing the key words.
7. The results of the search then appear in a list.
8. The user clicks on any web site.
9. Very specific key words are sometimes necessary.
10. A search engine can be easy to use and fast.
I made a typo on #1. The simple subject is 'use', not 'Internet'. Sorry about that!