题目Was it in 1969 ___ the American astronaut succeeded ___ landing on the moon?( ) A. when;on B. that;on C. when;in D. that;in 答案第一空填that是强调句的一般疑问句,结构是:Was/Is it +强调部分+that(指人也可以是who),这句话强调的是时间状语in 1969,第...