(Q).
James picked glass walls because they let more light into the room. Why did they let light in? Choose the most suitable option to answer the above question. Options：  A. inventive  B. half empty  C. recyclable  D. clear  E. very fragile
(A).
D


(Q).
What can you use hear other people and be heard yourself? Choose the most suitable option to answer the above question. Options：  A. mouth  B. song  C. radio  D. ears  E. telephone
(A).
E


(Q).
People using a machine gun are a part of what? Choose the most suitable option to answer the above question. Options：  A. quake 2  B. arsenal  C. in a  D. armory  E. military service
(A).
E