As everyone knows, there are many 　16　 of transportation in the world, like bicycles, buses, ships, trains and 　17　 .

If you are in big  18　like Shanghai or Beijing, maybe you get to school   19  a subway or you have to 　20　 to school because you live in a mountain village. Here I am just trying to say something about　21　 .

Ten years　22　, bicycles were very　23　in most villages.  24　 family had one or two of bicycles. Children got to school by bicycle; 　25　 rode bicycles to go shopping. Then motorcycles (摩托车)   26  to become popular. People no longer rode bicycles because motorcycles ran   27  faster.  But now, in some countries，bicycles are highly suggested

  28  the main means of transportation. They think buses, cars and motorcycles pollute(污染) the air but bicycles   29  . So, to live a low-carbon life,   30  a bike is a good way.

As everyone knows, there are many 　16　 of transportation in the world, like bicycles, buses, ships, trains and 　17　 .
If you are in big  18　like Shanghai or Beijing, maybe you get to school   19  a subway or you have to 　20　 to school because you live in a mountain village. Here I am just trying to say something about　21　 .
Ten years　22　, bicycles were very　23　in most villages.  24　 family had one or two of bicycles. Children got to school by bicycle; 　25　 rode bicycles to go shopping. Then motorcycles (摩托车)   26  to become popular. People no longer rode bicycles because motorcycles ran   27  faster.  But now, in some countries，bicycles are highly suggested
  28  the main means of transportation. They think buses, cars and motorcycles pollute(污染) the air but bicycles   29  . So, to live a low-carbon life,   30  a bike is a good way.

As everyone knows, there are many 　31　 of transportation in the world, like bicycles, buses, ships, trains and 　32　 .
　 If you are in big 33　like Shanghai or Beijing, maybe you get to school 34　 subway; or you have to 　35　 to school because you live in a mountain village. Here I am just trying to say something about　36　 .
　 Ten years　37　, bicycles were very　38　in most villages.　39　 family had one or two of bicycles. Children got to school by bicycle; women　40　bicycles to go shopping. Then motorcycles (摩托车)　 41　 to become popular. People no longer rode bicycles because motorcycles ran much　 42　 .But now, in some countries bicycles are highly suggested　 43　 the main means of transportation. They think buses, cars and motorcycles pollute(污染) the air but bicycles　 44　 . So, to live a low-carbon life, riding a bike is a good　 45　 .
31. A. kind　　　　　　　　　 B. kinds　　　　　　　　　　　 C. mean　　　　　　　　　　　 D. way
32. A. other　　　　　　　　　　　　 B. others　　　　　　　　　　 C. the other　　　　　　　　 D. another
33. A. cities　　　 　　　　　 B. countries　　　　　　　　 C. villages　　　　　　　　　　 D. countryside
34. A. on　　　　　 　　　　 B. by　　　　　　　　　　　　　 C. in　　　 　　　　　　　　　 D. of
35. A. on foot　　　　 　　 B. walk　　　 　　　　　　　　 C. walks　　　 　　　　　　　 D. runs
36. A. bicycles　　　　　　 B. motorcycles　　　　　　 C. buses　　　　 　　　　　 D. cars
37. A. later　　　　　　　　　 B. before　　　　　　　　　　 C. ago　　　　　　　　　　　　 D. after
38. A. cheap B. important C. expensive D. popular
39. A. All　　　 　　　　　　 B. Both　　　 　　　　　　　　 C. Every 　　　 　　　　　　 D. Most
40. A. rode　　　 　　　　　 B. ride　　　　　　　　　　　　 C. rided　　　　　　　　　　　 D. rides
41. A. begin　　　　　　　　　　　　 B. began　　　　 　　　　　 C. begun　　　　 　　　　　 D. start
42. A.fast　　　　　 　　　　 B. faster　　　 　　　　　　　 C. slow　　　　　　　　　　　 D. slower
43. A. for　　　 　　　　　　 B. in　 　　　　 　　　　　　　　　　 C. at　　　　　　 　　　　　　　　　　 D. as
44. A. not　　　　　 　　　　 B. don’t　　　　 　　　　　　 C. doesn’t 　　　　　　　　　 D. didn’t
45. A. way　　　 　　　　　 B. road　　　　　　　　　　　　　　　 C. route　　　　 　　　　　　　　　 D. kind

 —___________ my daughter is only ten years old, she knows a lot.

　 —What a clever girl!　　

A. Though              B. Because              C. Whether