41. On Christmas Day, I often send my close friends .................................. cards. (greet) 42. Paris is .................................... for the Eiffel Tower. (fame) 43. There have been many ....................... achievements in the field of science. (wonder) 44. Last night, the TV program was very ..................................... (interest) 45. He has been an active (participate) .................................... …….in the discussion. 46. .................................... he was ill on the day of the pop festival. (fortunate) 47. Don't let the child go out because it's .................................... (wind) 48. My sister is fond of …………..places. (crowd)