Part I Complete the following sentences with appropriate words given below. Change the form if necessary. awareness cultural curl non-verbal contact diplomat gesture facial embarrass rarely 1. She sat with her legs ________ under her. 2. There has been an increasing ________ of environmental problems since the 1980s. 3. Researchers found that ________ differences may sometimes lead to misunderstandings. 4. Sarah made a menacing (威胁的) ________ with her fist. 5. According to psychologists, 90 percent of communication between people is ________. 6. He was ________ by the questions about his private life. 7. He has worked as a ________ in the US, Sudan and Saudi Arabia. 8. You can tell whether people are joking by observing their ________ expressions. 9. After the two hadquarreled, they avoided eye ________ all evening. 10. They were ________ seen together andcertainly did not travel together at all.