What does“GSOH”possibly mean？
A. Gentle, sensible, obedient and honest.
B. Generous, sincere, open and handsome.
C. Good sense of humor.
D. Great source of honor.
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The International Dark-Sky Association is an organization that________.
A. strongly opposes outdoor lighting service
B. has lost some money in energy trade
C. has profited from the lighting business
D. makes efforts to reduce light pollution
What the author’s attitude towards people’s desire for success？
Approving.
B. Disapproving.
C. Unclear.
D. Critical.
The author implies what the troubled boys needed most was _________.
A. strict guidance in proper behavior
B. challenging demand in hard work
C. sympathy and tolerance from adults
D. understanding and trust from others
People who work at night_______.
A. lose the chance to gaze stars
B. have a higher risk of health problem
C. have less exposure to white light
D. are to blame for light pollution
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