41.  I write this letter to you in order to ask you two questions.

42.  In fact, most of us can't do this, why?

43.  But Wu Dong refuse it and said: "This what I should."

44.  This encourages us to study hard.

45.  Because this is the first time, I have no material, I have to write these.

46.  When I had learnt the Lesson One and Lesson Two, I had a text for it this week.

47.  This text .

48.  Aim at this kind of situation .

49.  on it wrote: "This road can't pass through, , please go by a round about route .

50.  He thought: "this Maybe was a good intention joke."