The word "insulation" in paragraph 3 mostly means _________.a. materials

A. Subsequent to their performance at the elimination tournament, they were afraid to win the trophy excellently.

B. Were it not for their excellent performance at the elimination tournament, they wouldn't have won the trophy.

C. Despite their excellent performance at the elimination tournament, they didn't win the trophy.

D. Because they didn't win the trophy, their performance at the elimination tournament was however excellent. 

A. not so many as

A. what

A. Both took advantage of new insulation technology, which cuts down on construction costs

B. Both were built based on green building principles, which reduces energy use considerably

C. Both are housing complexes with special, non-polluting heating systems

D. Both were built out of entirely recycled materials instead of conventional ones 

A. The boy who lost several of his fingers because of firecrackers is being operating on.

B. The boy whom the doctors are operating on him lost several of his fingers because of firecrackers.

C. The boy was whom the doctors are operating on him lost several of his fingers because of firecrackers.

D. The doctors are operating on the boy who lost several of his fingers because of firecrackers.