The WTO urged that all the countries measures to prevent swine flu spreading.
A. take
B. must take
C. are to take
D. took
网友回答
(答案→)A. take
B. must take
C. are to take
D. took
解析：英语中，如：urge，advise, ask, demand, desire, decide, insist(坚决要求) , order, propose, request, suggest(建议) 表示请求、要求、命令或建议等意义的动词所接的宾语从句一般用虚拟语气，其虚拟语气的结构为：(should) + 原形动词。句意是：世贸组织强烈要求所有的国家采取措施防止猪流感蔓延。选A。