31.  I wish you can answer me the question by letter.

32.  It was very hot, then he want to swimming by the side of the River..

33.  we went it by bike, about two hours we reached there .

34.  So I was very happy, because I said a right answer by myself .

35.  Chinese is spoken by the largest number of people in the world .

36.  Many people who lived in other countries were sent abroad by sea to China in the Tang period.

37.  English is spoken in the place which had been taken up by the westerners.

38.  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 ?"

39.  I went there by train.

40.  There is a sign by his grave.