1. The most obvious reason for this phenomenon is that ______________. Consequently,

　　______________.

　　2. No matter you like it or not, AAA has become more and more popular and there are many reason for it.

　　3. Its an urgent task for us to change this unfavorable situation: ______________.

　　4. The picture can reminds you of some strange, yet familiar phenomena existing in our society.

　　5. A great number of solutions are being offered. Some people suggest that ______________. Others argue that ______________.

　　6. Confronted with AAA, we should take a serious of effective measures to cope with the situation.

　　7. However, ______________ may cause some problems. First, it is ______________. Second,

　　______________. Finally, ______________. So, it is clear that ______________ has its advantages and disadvantages.

　　8. Although ______________ has a great advantage of ______________, it cant compete with

　　______________ in ______________.

　　9. ______________ may be preferable to ______________, but ______________ suffers from the

　　disadvantages that ______________.

　　10. The advantages of ______________ are much greater that those of ______________. For instance,______________.