1：D The number of male nurses has gone down.

　　2：A Cultural bias.

　　3：C He was almost drowned.

　　4：B The emergency services are efficient.

　　5：AIt became an online star.

　　6：B Release it into the wild.

　　7：D The raccoon did something no politician could.

　　8：C She received her frst monthly salary.

　　9：B Two decades ago.

　　10：D He treated his parents to a nice meal

　　11：C Join her colleagues for gym exercise

　　12：A He has a diffcult decision to make

　　13：D Seek advice from his family and advisor

　　14：D His girlfriend does not support his decision

　　15：C They haven't started their careers yet.

　　16：B Using information does not support his decision.

　　17：C Playing games that challenge one's mind

　　18：D Participate in debates or discussions.

　　19：AThe nature of relationships between dogs

　　20：C They can fall in love just like humans

　　21：D They stay with one partner for life.

　　22：A A cow bone

　　23：B Preserving it.

　　24：B The boy's family had acted correctly

　　25：C Conduct a more detalled search.