单选题 We were discussing the housing problem when a middle-aged man {{U}}cut in{{/U}} and said, "There's no point in talking about impossibilities."
  • A. intersect
  • B. interject
  • C. penetrate.
  • D. adulterate
【正确答案】 B
【答案解析】A项intersect“相交，交叉”；B项interject“插嘴”；C项penetrate“穿透，渗透，洞察”；D项adulterate“掺杂”。