II. Choose the word which best completes the sentence.
Example: I'm sure that one day the scientists will … most of medical problems.
a) take b) solve c) explore
I'm sure that one day the scientists will solve most of medical problems.
1. By exploring space we may find another … we can live on.
a) distance b) planet c) star
2. Natural disasters … cities and towns, they injure and kill people and animals.
a) break b) damage c) destroy
3. But people hope they will travel through … in huge spaceships far from the Earth.
a) space b) galaxies c) satellites
4. Scientists can now predict most weather … and warn people of possible danger in advance.