Dr.Yuan ___36___ for a way to increase rice harvests without expanding the area of the fields...Dr. Yuan is now ___37___ his knowledge in India, Vietnam and many other less developed countries to increase their rice harvests... ___38___ to his research, the UN has more tools in the battle to___39___ the world of hunger.
He made people laugh at a time ___40___ they felt depressed, so they could feel more___41___ with their lives...His parents were both music hall ___42___ .
However, people from places like Spain, Italy or south American countries approach others closely and are more___43___ to touch them.
In ___44___ , though, studying international customs can certainly help avoid difficulties in today’s world of cultural ___45___ .
36. searched
37. circulating
38. Thanks 39. rid
40. when 41. content
42. performers
43. likely 44. general
45. crossroads