It was in 1969 ________ two Americans went to the moon by spaceship. A. when B. that C. at that time...
2023-01-18 07:03:59 61次 2010-2011学年浙江省高一上学期10月月考英语卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
It was in
1969 ________ two Americans went to the moon by spaceship.
A. when
B.
that
C. at that time
D. just then
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