阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。

    Do you know something about the moon? You can ____ (seeing) it at night. Sometimes it looks round and ____ (brightly). It also looks quite near. ____ the moon is very far from the earth. If you take ____ spaceship, you will get there in more than three days. The spaceship ____ (go) very fast, at 11 kilometers a second. In 1969 two ____ (American) got on the moon by spaceship.

    There are no living things on the moon ____ there is no air or water there. That's why people can't ____ (liveness) there. But you may know you can jump much higher there than ____ the earth. It's full, isn't it?

    I hope some day we Chinese ____ (get) to the moon, too.