可以帮我找到这段文章里面的Who,what,why,where,when,how吗？PoliceinAmericahavesteppeduptheirsearchforafifteen-year-oldboywhowentmissingthreedaysagoinDover,NewHampshire.Thisincidenthasreceivedgreatinteres

Question

可以帮我找到这段文章里面的 Who, what ,why, where, when, how 吗？
Police in America have stepped up their search for a fifteen-year-old boy who went missing three days ago in Dover, New Hampshire. This incident has received great interest due to reports of strange lights in the sky and of alien visits around the time and the boy disappeared.

Answer 1

Police in America have stepped up their search for a fifteen-year-old boy （ who ) went missing three days ago in Dover, New Hampshire. This incident has received great interest due to reports of strange lights in the sky and of alien visits around the time and the boy disappeared.
就只有一个who