I.  Fill in the blank with the words from the box to complete the sentences.

facial expression       Emails         face-to-face meeting       letters

body language          Texting                video chat                signs

1.    Teenagers often use abbreviations when                          to save time.

2.    People who cannot hear or speak often communicate with each other by using                                     .

3.    In a                       ,  people communicate directly to each other.

4.    Using                     during your talk is an effective way to attract more people’s attention.

5.    In the past, people who live far away used to write                      to keep touch with their relatives or their family.

6.                     helps people connect to each other in such a quick and cheap way.

7.    Smiling and blinking your eyes are examples of                          .

8.    Since the appearance of the Internet, people have been able to send                   to contact with people from any countries in the world.