When frozen it showed solidity, but as it thawed and melted it showed what? Choose the most suitable option to answer the above question. Options：  A. fluidity  B. hollowness  C. openness  D. weakness  E. instability
A

The person worked hard and achieved his goals and got to feel what? Choose the most suitable option to answer the above question. Options：  A. headache  B. disappointed  C. celebrated  D. simplicity  E. fulfilled
E

The animals were not thirsty, so what did they do when they were by the river? Choose the most suitable option to answer the above question. Options：  A. feel pain  B. fly  C. pass water  D. die of cancer  E. feel pleasure
C

George liked hunting foxes.  Where might he go to do so? Choose the most suitable option to answer the above question. Options：  A. hen house  B. painting  C. virginia  D. california  E. lion's den
C