12．Unfortunately.the hero was drowned after he saved the drowning girl．——青夏教育精英家教网——

12．Unfortunately，the hero was drowned after he saved the drowning girl．

11．Jane is very helpful．She often gives practicalsuggestions on how to buy cheap things on the Internet．

10．To my great relief，I was on time to catch the last train at the last minute．

9．I'd like to play badminton with you whenever it is convenientfor you．

8．In the 1950s the Chinese government introduced simplified Chinese characters．

7．Both Pompeii and Loulan became lost civilizations about 2，000years ago．

6．Unfortunately/Unluckily，he didn't pass the entrance examinations for a second time．

5．The People's Republic of China was founded on October 1，1949．

4．In recent years，China has made great contributions to the exploration of outer space．

3．The central government set up a working team to handle the related matters of the missing Malaysia Airlines flight 370．

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