IV. Complete the sentences with the given words in their suitable forms（用括号中所给单词 的适当形式完成下列句子。每空格限填一词）:（共8分）
59. The farmers used a lot of _________ to kill the insects in the fields. ( chemistry )
60 .As a teacher, we mustn’t be _______with the children. ( patient)
61 .We use many _________ appliances in our daily life. (electricity)
62 .People are looking forward to good public ___________ (serve)
63 As ______ closed about them, they decided to return home. (dark)
64 .He left the room without any ____________. ( explain)
65 .The more exercise you do, the ______you will be. ( health )
66. She ______ Paris as a good place for the conference.(suggestion)
V. Rewrite the following sentences as required（根据所给要求，改写下列句子。每空格限填一词）: (共14分)
67. Stella had lunch at home last term. (改为否定句)
Stella ______ ______ lunch at home last term.
68. His father hangs the hat on the wall. (改为被动语态）
The hat ______ ______ on the wall by his father.
69. British children never have lessons at school at weekends. (改为反意疑问句)
British children never have lessons at school at weekends, ______ ______?
70. Alice had a good time at the party last weekend. (保持句意基本不变)
Alice ______ ______ at the party last weekend.
71. It took John one week to read the book Harry Potter. (保持句意基本不变)
John ______ one week ______ the book Harry Potter.
72. Henry has taught physics since he left university. (对画线部分提问)
_____ ______ has Henry taught physics?
73. Both I and my brother like detective stories. (改为否定句)
Neither my brother _________ I ________ detective stories.