59. He is a famous teacher with forty years’_______(经验).

58.Look at the ___________(剩下的)20yuan, I began to regret buying that expensive handbag.

57.I could not get a satisfactory ____________-(解释).

56. Without any ____________(犹豫), she took up the red flag and rushed out.

55.The __________-(示威者)against the war marched down the main street.

54.Guangdong is a _________(南方)province in China.

53．You may also have to obtain a visa, which says how long you can stay in the f__________- country.

52．People here like sitting in the cafe c__________ with their friends.

51.S_______ teacher have the experience needed to make their lessons interesting.

50. An airline is a company that provides scheduled f_________ to various places.