题目内容
选择方框中的词并用其适当的形式填空。
Fei Junlong and Nie Haisheng have ________ the spaceship safely.
答案：landed
解析：
解析：
|
land 用作及物动词，意为“使……降落”。 |
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选择方框中的词并用其适当形式填空
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