开头字母已经给出,请根据句意写完这个单词!

开头字母已经给出,请根据句意写完这个单词!
1.It is interesting to know that some astonauts took walks in o space.
2.He has to work hard because he has a big family to s .
3.Last night,my brother had a terrible n in which someone tried to kill him.
4.He said he d to our pian at the meeting,didn't him?
5.I was reading when our teacher suddenly patted me on the s .
6.Some people declared that they discovered Yeti,a wild c in the mountains area.