68. Her parents often ask her to give up _______________ ( smoke).

67. The old should ________________ (look after ) well in our country.

用括号内所给动词的适当形式填空。

66. Did he have any difficulty ________________ ( pass) the exams?

65. W_______________ red makes it easier for you to take action.

64. We think he will be a good monitor because he has many good personal q _____________ .

63. My teacher is p_______________ enough to explain to us without getting angry.

62. Many teenagers have an u________________ diet.

61. Can you offer me some advice? They will be the most v________________.

60. _________________(没有) of them stays out late to play computer games.

59. Music can make you ________________(放松的) after heavy homework.