You can share files with someone if you have a connection to a what? Choose the most suitable option to answer the above question. Options：  A. freeway  B. radio  C. wires  D. computer network  E. electrical circuit
D

The man began asking me questions about my sloppy habits in front of others, what did I feel? Choose the most suitable option to answer the above question. Options：  A. misunderstood  B. embarassment  C. people will understand  D. children will learn  E. satisfaction
B

What can exercising cause? Choose the most suitable option to answer the above question. Options：  A. lift weights  B. shortness of breath  C. collapse  D. error  E. run
B