43.　 People in China and abroad have given money to help 　　　　　(贫穷的) children.

42.　 There was 　　　　　　　(没有什么) strange about that.

41.　 We are good friends because we like the 　　　　　　(相同的) things.

40.　 I hope to meet a 　　　　　　(真正的) astronaut one day.

39.　 Their light has traveled several years to 　　　　　　(到达) us.

38.　 Are we 　　　　　　(孤独的) in the universe?

37.　 Our solar system is only a 　　　　　　(部分) of the galaxy.

36.　 　　　　　　(没有一个) of us has been to the USA.