单选题 The wild animals are {{U}}enclosed{{/U}} in small cages in the zoo.
  • A. limited
  • B. bounded
  • C. restrict
  • D. confined
【正确答案】 D
【答案解析】[解析] limited:有限的,例如:a limited company(股份)有限公司。bound:被束缚住的,例如:He is bound to his work.他被工作绑住了。restrict:限制,例如:He restricted himself to smoking two cigarettes a day.他限定自己每天只抽两支烟。confine:禁闭、把……关住,符合题意,例如:It is cruel to confine a bird into a cage.把鸟关在笼子里是残忍的。