在线求指导：根据句意和首字母提示

根据句意和首字母提示补全单词

Do you k 1 Nie Haisheng and Fei Junlong?They are b 2 astronauts(宇航员).They went(去) to
the space(太空) by(乘) the Shenzhou Ⅵ spacecraft(宇宙飞船).They are cool.They are in gray c 3
then.They f 4 the earth(地球) is small.Mr.Nie and Mr.Fei are good friends.They are o 5 pride
(骄傲).