73.He _______________ (paint) many houses since he came here last year.

72. Keep quiet! Our teacher _________________(mark) the tests.

71. It is a good match, as the warm yellow ________________(balance) the calm white.

70. I am very sorry to keep you _________________(wait) for so long.

69. He would rather ________________(go hiking) than camping.

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 _____________ .