In this section, you will hear three passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D).A、Because people of different ages may have different understanding.
B、Because people of different sex may understand gestures in different ways.
C、Because people of different cultures may have different interpretations.
D、Because people of different cultures speak different languages.