*Question*
Where is a mobile heat source? Choose the most suitable option to answer the above question. Options：  A. bedroom  B. coal or wood  C. solar energy  D. fire  E. car
**Answer**
E

*Question*
What is the opposite of being dead? Choose the most suitable option to answer the above question. Options：  A. working  B. breathing  C. born  D. being  E. alive
**Answer**
E

*Question*
Where would you put a ficus if you want to protect it from the rain? Choose the most suitable option to answer the above question. Options：  A. arboretum  B. ground  C. apartment  D. california  E. home
**Answer**
C

*Question*
Doctors gave sedative to the patient complaining of pain, what did he say afterwards? Choose the most suitable option to answer the above question. Options：  A. enjoyment  B. good sometimes  C. immobilize  D. feels good  E. good feeling
**Answer**
D