请问这几道英语题怎么做,谢谢

1.Asapublicrelationsofficer,heissaid_______someveryinfluentialpeople.A.toknowB.tobekn... 1.As a public relations officer, he is said _______ some very influential people.
A.
to know
B. to be knowing
C.
to have been knowing
D. to have known
2. Government reports examination compositions legal documents and most business letters are the main situations _______ formal language is used.
A.
in which
B. at what
C. on which
D. in that
3.According to the American federal government, residents of Hawaii have the longest life _______:77.2 years.
A.
rank
B. span
C. scale
D. scope
4.Extensive reporting on television has helped to _______ interest in a wide variety of sports and activities.

A. assemble
B. generate
C. yield
D. gather
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usemind123
2010-12-27 · TA获得超过512个赞
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1.As a public relations officer, he is said __to have known_ some very influential people.
it's said that 句型改写成sb is said to do/ have done sth.
如果不定式动作先于主句谓语is said发生,则用不定手衡式完成式
这道毕乎做题先后顺序不太好确定,如果不论先后,应该A答案也可以
2. Government reports examination compositions legal documents and most business letters are the main situations __in which __ formal language is used. 在..情况下
3.According to the American federal government, residents of Hawaii have the longest life__span__:77.2 years. 寿命顷让
4.Extensive reporting on television has helped to __generate_ interest in a wide variety of sports and activities. 激起兴趣
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2010-12-27 · 超过15用户采纳过TA的回答
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A know 表认识 是短暂性动词 不用进行时 用一般时可以信圆斗表示现在的状态 不用 have known
A that引导定语从句时前面不加介词 in放句尾的时候that可以用 选什么介词取决腔闷于先行滑磨词 这句的先行词是situation 因为是in the situation 所以选in which
B life span寿命
B generate interest产生兴趣 产生爱好
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林卡卡就很666
2010-12-27
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1A 2A 3B 4B
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