原题：
One day, Mr. Li accepted an invitation to a large business conference in Dalian．He was felt very pleased and decided to attend it．In the morning of November 12, he arrived at the conference．What a lot businessmen! He got a bit surprised．The people, who invited to the conference, came from the United States, Italy, France, Singapore, Japan, Hong Kong included some provinces of China．At the conference, they introduced to their products like textiles, computers, telephones, toys, food and so on．There had more than 50 show for different production．During the conference they build new relation with each other and sold products．
答案：
One day, Mr．Li accepted (received) an invitation to a large business conference in Dalian．He was felt very pleased and decided to attend it．In (On) the morning of November 12, he arrived at the conference．What a lot (of) businessmen! He got a bit surprised．The people, who(were) invited to the conference, came from the United States, Italy, France, Singapore, Japan, Hong Kong included (including)some provinces of China．At the conference , they introduced to their products like textiles, computers, telephones, toys, food and so on．There had(were) more than 50 show (shows) for different production．During the conference they build (built) new relation with each other and sold products．