问题
Was it in 1969 ____ the American astronaut succeeded ____ landing on the moon
A:when; on
B:that; on
C:that; in
D:when; in;
B:that; on
C:that; in
D:when; in;
正确答案是：
同类题型
He is such an excellent player that I ________ that he will win the match. [ ]
Thisarticle______moreattentiontotheproblemofculturalinterferenceinforeignlanguageteachingandlearning
had taken such effective ______much earlier, the river would not bepolluted soseriously now