41.  there must be a political reason in history.

42.  Also, China was considied to be the largest Market in the world.

43.  Maybe Chinese will be the most popular language one day.

44.  there are so many popular song which are liked by young people now, I like the songs too ,but I don't think those will be popular forever, this song" happy birthday to you is my favourite song, perhaps you will be asked me: "it's too easy and simple, why do you like it ?"

45.  My neighbour's children love playing hide-and-seek as all children do , but no one expected that name they played lost week would be reported in the local newspaper.

46.  Maybe you are tired--of course it is more comfortable to sit down than to stand, but you say, "If I sit down, there will be fewer people standing in the world.

47.  Maybe one day you won't be able to stand up any longer, while we have already stood up, we stand in a line, just like the strong green trees .

48.  There will be more spring in the air in the world .

49.  When you smile to someone, you are saying, "I want to be made friend," but you are not speaking.

50.  if we go broad, first we must be able to speak English.