II. Choose the word which best completes the sentence. Example: I'm sure that one day the scientists will … most of medical

1. By exploring space we may find another planet we can live on. 2. Natural disasters destroy cities and towns, they injure and kill people and animals. 3. But people hope they will travel through space in huge spaceships far from the Earth. 4. Scientists can now predict most weather disasters and warn people of possible danger in advance.