In 1969, Neil Armstrong, an American astronaut, the moon for the first time, which announced man began to march at the universe. A .walked B .climbed C .set foot in D .set foot on 【查看更多】
题目列表(包括答案和解析)
In 1969, Neil Armstrong, an American astronaut, _____ the moon for the first time, which announced man began to march at the universe.
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A. walked B. climbed C. set foot in D. set foot on
