Brush your teeth every day，dentists say．In the south of Africa，some people brush their teeth with sticks first．
They keep a small stick in their mouth to chew （咀嚼） or scrub （洗刷） their teeth all day．People cut the sticks from trees．They are the African toothbrushes．People there are used to brushing their teeth with sticks．
Africans think the sticks work better than toothbrushes．The sticks come from nature，and it is said that there is something special about them．The special thing may stop many kinds of tooth problems．"If you have a bad tooth，it is a medicine，"said Diop，a seller in Africa．
The sticks also cost less than toothbrushes．
In Senegal （塞内加尔），the chewing stick is called"sothio"．It means"to clean"in their language．In east Africa，the stick is called"mswaki"．It's their word for"toothbrush"．
Nowadays，some nice health stores in the United States start to sell chewing sticks．They think that the stick is natural kind of tooth care．
（1）Some people brush their teeth with sticks first according to the passage．
（2）Africans keep in their mouth to chew or scrub their teeth all day．
（3）The sticks than toothbrushes．
（4）"Sothio"means" "in Senegal's language．
（5）The special thing in the sticks may help ．
A：Hello，this is Jack speaking in Beijing．May I （76） ？
B：Hey，this is Amy．（77） ？
A：I am visiting my aunt．I am calling to say good luck to you about your graduation exam．
B：（78） ．Have you ever been to Badaling？
A：（79） ．I went there yesterday．
B：（80） ？
A：I will be back in 6days．
B：See you then．
A：OK，see you!
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A．What's the matter with you？ B．You should save pocket money． C．Thanks for your advice． D．Although she is wrong，it's not a big deal． E．What should I do？ F．Now she is still angry with me． G．Could I borrow some money？ |
A：You look so sad．（71）
B：I argued with my mother．I spent too much pocket money（零用钱）．（72）
A：You should talk to her and say sorry．
B：Yes，I know I should．But it's not easy．
A：It's really difficult for parents to make money．（73）
B：You are right．（74） What can I do to make her happy？
A：What about buying something useful for her by saving pocket money？
B：That sounds good．（75） ．
Tourist：Excuse me!（42）
Betty：Certainly．Go along the street and turn left at the second crossing．The square is on your right．Tourist：（43）
Betty：It's about fifteen minutes on foot．
Tourist：Oh，can I take a bus？
Betty：Yes．（44）
Tourist：But where is the bus station，please？
Betty：（45） Look!Here comes the bus．
Tourist：（46） Bye!
Betty：You're welcome．Have a nice day!
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A．Thanks a lot． B．How can I get there？ C．How far is it from here？． D．You can take the No.16Bus． E．Sorry，I'm new here． F．It's just on the other side of the street． G．Can you tell me the way to Xinghai Square？ |
Joe can't speak Chinese．John can't speak it， ．