优优班--学霸训练营 > 题目详情
  • It was in 1969 ______ two Americans went to the moon by spaceship.

    A.when            B.that              C.at that time        D.just then

     

    【考点】强调句
    【分析】请登陆后查看
    【解答】请登陆后查看
    难度:中等
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