1. The mechanic has located the defect in a machine immediately.
2. The references and diagrams were attached to the document.
3. Many of your suggestions have been included in the plan.
4. The government is planning for all schools to be connected to the Internet within 5 years.
5. Whales use low-frequency sounds to locate each other.
6. Water consists of hydrogen and oxygen.
7. The disks are being scanned now for viruses.
8. New directions of research in robotics were being discussed at the last conference.
9. Einstein introduced his theory of relativity in 1915.
10. As computers are becoming more powerful and widespread, operating systems are becoming increasingly complex.
11. Many computer experts think that computers have only begun to make their mark on history.
12. Copies of the report were distributed shortly after the conference.