次の英文(1)～(5)の空欄(    ア    )～(     オ    )に入れるのに最も適切な語を、下記の(a)~(d)の中からそれぞれ1つ選び、その記号をマークせよ。

• (1) It is said that approximately 60% of Americans have private (    ア    ) insurance.
  • (a) health
  • (b) healthful
  • (c) healthy
  • (d) healthily
• (2) Some "catch& (    イ    )" anglers use barbless hooks because they are easier to remove from the fish.
  • (a) carry
  • (b) release
  • (c) snatch
  • (d) take
• (3) In the final play-off, our team came from (    ウ    ) to capture the championship.
  • (a) behind
  • (b) back
  • (c) against
  • (d) contrary
• (4) TV companies are fighting hard to win the competition for (    エ    ) ratings.
  • (a) audition
  • (b) auditor
  • (c) audit
  • (d) audience
• (5) The profblem of (    オ    ) care for their grandfather weighed heavily on the family.
  • (a) nursling
  • (b) nursing
  • (c) nursery
  • (d) nurse