17．聽短文，回答下面四個問題，選擇正確答案．短文讀兩遍．你將有20秒鐘的時間閱讀下面5個小題．
17．What do people in Brazil do when they meet for the first time？
A．They kiss．
B．They shake hands．
C．They bow．
18．What should you do if you visit a person in Arab？
A．I should put the right hand on the forehead while the left hand in frontof the chest．
B．I should knee down．
C．I should flick or tap with the thumb on the other's right hand to show their respect．
19．In which country women usually knee down they first meet men？
A．In Arab
B．In Nigeria
C．in Tanganyika
20．Why do people tap their stomachs a few times？
A．It shows that they are not worried about clothes and food．
B．It means congratulations to each other．
C．It shows their respect to the other one．
