The United States (has sent) several (spacecrafts) into orbits (around the earth

游客2025-05-08 33

问题 The United States (has sent) several (spacecrafts) into orbits (around the earth) and has collected a lot of (information).

选项 A、has sent
B、spacecrafts
C、around the earth
D、information

答案 A

解析改为sent。一般过去时陈述过去发生的事情。

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