Поместите глаголы в правильные формы, обращая внимание на модальные глаголы, выражающие различные степени вероятности.

28. Put the verbs into correct forms paying attention to the modal verbs expressing different degrees of probability. Trans- late the sentences. 1. The 1962 Caribbean crisis between the two major nuclear powers could (serve) a good lesson for those governments how to be responsible for global peace. 2. Fuel emissions must (be) the largest contributor to the ozone holes. 3. Nowadays some bacteria must (develop) resistance to antibiotics due to their uncontrolled use. 4. The research shows that alcohol could (cause) 12,000 cancer cases in the UK last year. 5. British scientist Stephen Hawking warned that mankind might (destroy) the Earth, turning it into a blazing fireball, within the next 600 years. 6. Particle physicist Harry Cliff, who works on the Large Hadron Collider at CERN, says that physics may already (reach) its limit of what we can understand about our world and the Universe. 7. Some psychologists think that while technology is evolving, people could (turn) into selfish, lazy and cruel creatures. 8. Some people worry that human cloning might (bring) back such individuals from the past as Adolf Hitler. 9. The press is constantly reporting that thousands of the US police and military drones must (fly) at the US borders and abroad. 10. Deforestation of tropical lands in the 19th-20th centuries may (lead) to extinction of some species.