*Question*
The toilet was filthy with overuse and drunken use, where was it located? Choose the most suitable option to answer the above question. Options：  A. train  B. restaurant  C. motel room  D. stadium  E. space shuttle
**Answer**
D

*Question*
The universe is quite vast, most say it is even what? Choose the most suitable option to answer the above question. Options：  A. mysterious  B. very old  C. full of mysteries  D. infinite  E. real
**Answer**
D

*Question*
Where do cows beef rank first in the country? Choose the most suitable option to answer the above question. Options：  A. switzerland  B. tennessee  C. stable  D. city  E. ranch
**Answer**
B

*Question*
What is the biological purpose of eating breakfast? Choose the most suitable option to answer the above question. Options：  A. halitosis  B. fullness  C. overeating  D. gas  E. gain energy
**Answer**
E