67.　 The young plants are well _________(保护) against the weather.

66.　 He ________(发音) the word, and I found his _________(发音) was a bit strange.

65.　 I ________(承诺) myself a quiet weekend.

64.　 Heavy snow________(预示) a good harvest.

63. Great ______(进步) has been made in English so far.

62. ________(教授) Smith had a strange way of making his lessons lively and interesting.

61. The _______(生产) of crops is increasing year by year.

60. The _____(囚犯) thrown to ______(监狱) last month are planning to escape.

59. You should have the book __________(印刷) next week.

58. The couple was __________(骄傲) of their son.