(Question)
The introduction of industry greatly expanded human what? Choose the most suitable option to answer the above question. Options：  A. big city  B. factory  C. machinery  D. poverty  E. civilization
(Answer)
E


(Question)
The area of land next to the ocean is called what? Choose the most suitable option to answer the above question. Options：  A. underwater  B. surface of earth  C. waterfalls  D. delta  E. beach
(Answer)
E


(Question)
Where would you see a conductor and performers singing in German? Choose the most suitable option to answer the above question. Options：  A. subway  B. listen to music  C. orchestra  D. broadway  E. opera
(Answer)
E