The best example of universally understood body language may be smile. A smile can help us get through difficult situations and find friends in a world of strangers. A smile can open doors and tear down walls.
注意: 1.无须写标题;
2．内容只需涉及一个方面；
3．词数在100词左右。

A. Companies rely on e-mails for communications.
B. More people in the world communicate by e-mails.
C. Many computer viruses contain spam e-mails.
D. More advertisers begin to promote sales through spam.

A. know more people
B. find" cheap accommodation
C. get the right accommodation quickly
D. get free information about most accommodations