Put the words in order to make sentences.

问题描述:

Put the words in order to make sentences.
1.we/just/TV/programme/on/a/watched/have/.
2.on/discovered/yet/life/they/Mars/haven't/.
3.already/astronauts/landed/moon/on/the/have/.

we just have watched on a TV programme.
They haven't dicovered on Mars life yet.
Astronauts have landed on the moon already.