题目内容：

阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。

C919 was the first China-made aircraft. Actually, the research and development process was supported by more than 30 top Chinese universities, 1.(include) Tsinghua and Peking University.

The capitalized C of C919 stands 2.Commercial Aircraft Corporation of China, and COMAC for short. The number 9 symbolizes"forever" in Chinese while 19 refers to its capacity of 190 passengers.It has not been 3.(official) in use yet, but the C919 4.(take)its first fly on 5 May 2017 and it was a remarkable success. It is now in the final testing stage and is planned to enter commercial service in 2021 with China Eastern Airlines. Though the C919 has not been put into official operation, there are more than 1000 orders 5.(announce) already,from home and abroad.

The successful trial flight of C919 also shows that the manufacturing industry of China is becoming more and more internationally 6.(compete )! C919 was designed and produced in China, 7. , however,was made with 8.(resource) from around the world. Undoubtedly,C919 is an 9. ( achieve) of global cooperation. In the future, COMAC also plans a wide-body plane, the C929, in cooperation with Russia's United Aircraft Corporation. The win-win attitude is just 10.makes China such an attractive and respectable nation.