Question: Billy's disability prevented him from moving, but it didn't alter his mind or what? Choose the most suitable option to answer the above question. Options：  A. activity  B. potence  C. qualification  D. competency  E. strength
Answer: D

Question: what must a dog do daily? Choose the most suitable option to answer the above question. Options：  A. drink water  B. shake hands  C. guard house  D. mate  E. stay in place
Answer: A

Question: If a person want a changing society, what is a likely motive? Choose the most suitable option to answer the above question. Options：  A. new laws  B. confusion and chaos  C. cultural revolution  D. happiness for  E. train
Answer:
D