1. It is a very common and necessary activity to _____________.
2. Knowing _____________ is important.
3. We should change _____________we speak when talking with different people.
4. The expressions you use might depend on ___________ you are speaking to or __________ you 
    know them.
5. If you stop a stranger in the street, we might first say "Excuse me. __________" or "I'm sorry to 
    trouble you but," before asking them for help.

     Welcome 1._____  China. Let me introduce something about the Great Wall  2._____you.
The Great Wall is the longest 3._____ in the world.It has a  4._____  of over two thousand 5._____.
It was very difficult  6._____ 7._____  such a great wall in the old times. It ismore than 7,000
kilometres 8._____ , 6~7 metres high and 4~5 metres  9._____.  10._____Someplaces, it is  11._____
enough for five horses or ten men 12._____   13._____  side by side along the top.
    Today it has become a place of 14._____no only to Chinese people, but also to people
15._____  16._____  the world. All Chinese are 17._____ of it.
     I hope you'll have a good time 18._____ the Great Wall.

 (     ) 1. In the last twelve months,  the New Ocean Waves had four major concerts.  
 (     ) 2. They're going to appear on CCTV next month.   
 (     ) 3. They only play other people's songs.
 (     ) 4. They gave half of the money they made to help the homeless children.. 
 (     ) 5. They gave half of the money they made to help the homeless children.

(     ) 1. E-mail English is used to save time.
(     ) 2. E-mail English is supposed to be used in tests.

(     ) 1. Teenagers’ hobbies always get in the way of their schoolwork.
(     ) 2. Liu Yu is fifteen years old and from Shandong.
(     ) 3. Liu Yu thinks his parents are very strict with him and never care about him.
(     ) 4. Liu Yu thinks only when he is allowed to make the decision for himself can
             he havea chance to succeed.
(     ) 5. Liu Yu’s parents don’t allow him to practice running every day because
             they want him to spend time on his schoolwork.