This seems to be a declarative sentence. It talks about the reaction of the policeman to a specific thing. His expression is not pleasant. What he might saw is something not good and something to worry about. Other possible thing could be there an heinous crime scene that he faced at that moment. It depends on the situation.<span />
Answer:
The best way to organize a passage about bike helmets reducing serious head injury is from problem to solution.
Explanation:
Make the facts organized to give details about the topic.
Answer:
wdym? i can if you tell me-
Explanation: