Put in the correct modal verb. If the modal verb is used in the negative form, put down the full negative forms (for example, may not, can not) 1. To stop the current flow you _ open the circuit. 2. _ I interrupt the discussion to report the latest news? 3. If you want my advice, you _ find another material. 4. Nuclear energy _ be used for peaceful purposes. 5. You _ (negative) stay here if you don’t want. 6. One _ be very careful using strong acids. 7. The meeting _ to take place at the University at 6 p. m. 8. The device is faulty; you _ rely on its readings. 9. Students _ know that barometers are of two types. 10. Two bodies of unequal size _ have the same temperature. 11. Care _ be taken in handling radioactive materials 12. You will _ pass this examination ahead of the schedule. 13. Many compounds _ be decomposed if they are heated. 14. As he was ill, he _ attend the conference. 15. All employees always _ wear protective clothes in the factory. 16. Deserts _ be turned into gardens by solar energy. 17. Prolonged exposure to the rays of radioactive elements _ result in dangerous burning. 18. Even long time ago Dalton’s ideas about atom _ explain many experimental observation and scientific laws.