【正文】
The first … years saw… The last … years witnessed … What has caused this problem? It seems to me that there are … reasons as follows. First of all, (______).What is more, (______).Last but not the least,(______). According to what we have talked above, we can arrive at the conclusion reasonably /naturally that…. the best way to solve this problem is… Although, following this method may not guarantee the success in solution to…, but the payoff will be worth the effort. 4 / 4