Fill in: over, for, down, off, on. Check in Appendix I.
1. Suddenly, the lights went ................. and the astronauts knew something was wrong. (stop working)
2. Apollo 13 was a mission that went ................. in history. (was remembered)
3. The Voyager probes were launched in 1977 from Earth and they will go ................. travelling through space for ever. (continue)
4. The astronauts went ................. the procedures again and again. (repeat)
5. He's going ................. the position of mission commander even though he's only 25. (try to achieve sth)

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