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Across 3. occurring between, or involving, two or more schools 6. a close watch or observation, esp. of a person or group of people under suspicion. 7. the world's largest computer network, which is made of millions of computers that are linked together. 11. the equipment or programs used to communicate between different computer systems or programs. 12. to breathe more rapidly and deeply than normal. 13. within or into a muscle. 17. being in or entering through a vein or veins. 18. within the limits of a state 19. a sea vessel that can travel under water.

Down 1. a network of computers, similar to the internet, within a particular company or organization. 2. text or an image on any web page that, when clicked on, causes another web page or another point on the same page to be displayed on the computer screen. 4. very active or stimulated beyond what is normal. 5. using words well, in a way that others enjoy hearing or reading. 6. in a single individual or in humans generally, all mental and emotional activities and processes occurring beyond awareness. 8. between or involving different countries. 9. excessively or unduly sensitive. 10. abnormally high body temperature. 14. having or reflecting a wish to harm. 15. a substance which your body produces when you are angry, scared, or excited. It makes your heart beat faster and gives you more energy. 16. a meeting between a person who has applied for a job and the person who is offering the job.