阅读下面短文, 掌握其大意, 然后从每小题所给的A、B、C、D四个选项中选出最佳选项。

    Are there aliens?  In the movieHomethere 1. The Boov are aliens. But their enemies ruined their planet. 2 the Boov have to find a new planet. They choose to go to 3 and drive people away.

    Earth is a good place. The Boov are 4 there. They have a party to celebrate. But a Boov named Oh makes a big 5. He asks everyone to come to their party, including their enemies. Other Boov think Oh is 6 spy(间谍). Oh 7 run away. He meets Tip, the last 8 on Earth. Tip is smart. The Boov can't catch her.

    Both Oh and Tip are on the run. They become friends and go on adventures. On the way, the 9 change each other's world. And they get to understand the true meaning of "10".