A. work/ to B. worked/ to 4.If you don't understand body language, A. communicate C. work/ for ...breakdown may happen. C. communication D. worked/ for B. communicative D. communicating 5.I don't mind A. wait 6. Scientists say that people..... B. waiting C. to wait D. waited ..longer in the future. A. live B. will live C. are living .without the help of a computer. C. wise D. would live 7. This job would be..... A. possible 8. She said she B. impossible D. unwise to the Moon when she had enough money. B. to travel C. would travel D. travelling A. travel ....to New York next month. 9.I've decided. B. to fly C. fly D. flying A. flew 10. A scientist who studies chemistry is a.. B. engineer D. doctor C. designer A. chemist