There was time Irap was one of the strongest countries in the world.A. a whenB. a thatC.

问题补充：

There was time Irap was one of the strongest countries in the world.

A. a when

B. a that

C. that that

D. the when

答案：

(答案→)A. a when

B. a that

C. that that

D. the when

解析：这题考查冠词的用法：a time是“一段时间”，第二空是when引导定语从句修饰a time，在定语从句中缺少地点状语，句意是：曾有一段时期伊拉克国家是世界上最强大的国家之一

考点:考查冠词和定语从句

点评; time表示时间是不可数名词，但可以接a，表示一段时间，定语从句关系代词和关系副词的选择取决于从句的成分，当定语从句缺少主宾表时，就用关系代词，当定语从句缺少状语时，用关系副词。