61. Use modal auxiliary：
They were obliged to finance from short-term loans as the debts fell due.
62. Use an infinitive phrase：
My friends recommended that I should give up smoking.
63. Combine sentences using comparative degree (more … than …)：
He works carefully. I don’t work carefully enough.
64. Combine the sentences into one that contains a relative clause：
The monsoon season occurs in Thailand every year. It causes heavy rains.
65. Combine the sentence into one that contains a relative clause：
My special gratitude goes to Professor Wang. Without his help this book would not have been finished in time.
66. Write a counter-factual conditional based on the given facts：
Tom doesn’t travel because he doesn’t have enough money.
67. Use “neither” as part of the subject：
Both statements are not true.
68. Use whatever cohesive device is appropriate：
He sold his old house and bought a new house the next day.
69. Use whatever cohesive device is appropriate：
The old people are retiring and the younger people are taking over.
六、名词解释题 (本大题共2小题, 每小题2分, 共4分)
Define the following terms with examples.
70. tag question
71. the infinitive
七、简答题 (本大题共3小题, 每小题2分, 共6分)
Answer the following questions：
72. List two voice forms and three mood forms of verbs and verb phrases.
73. What are stative adjectives？
74. What are exophoric reference and endophoric reference