1.Read the passage then answer the question.
Construction on florence's grand cathedral began in 1296. over a hundred years later, however, the structure remained unfinished ,with an enormous hole in the roof. the designers had intended to top the cathedral with the world's largest dome ,but this plan was stymied by architectural limitations. The main factor stalling progress was the fact that no one knew how to create such a massive cupola without large, cumbersome support systems.
What is the meaning of cupola as used in the passage ?
2.Read the passage then answer the question.
While the political feats of her husbend , president chiang kai-shek,may be more widely recognized soong mei-ling's accomplishments are just as motable . as first lady, soong mei-ling introduced her husband to western culture and ideas.likewise ,she served as her husband's emissary, or spokesperson,to the west .during a visit to the uring a visit to the united states in 1943, soong mei-ling became the american public, who praised her passion and determination, and she raised billons of dollers aid for her country.
What is the meaning of emissary,as used in the passage