________ which university to attend,the girl asked her teacher for advice.   (20

________ which university to attend,the girl asked her teacher for advice.   (20

题型:不详难度:来源:
________ which university to attend,the girl asked her teacher for advice.   (2013·四川,8)
A.Not knowingB.Knowing not
C.Not knownD.Known not

答案
A
解析

句意为:因为不知道该上哪所大学,女孩求助于老师。句子主语the girl和动词know之间是主谓关系,所以应该用动词­ing形式作状语,而动词­ing形式的否定式是在其前加not,所以选A,从而排除B和表示动宾关系的C和D。
举一反三
The airport ________ next year will help promote tourism in this area.        (2013·四川,10)
A.being completedB.to be completed
C.completedD.having been completed

题型:不详难度:| 查看答案
Let those in need ________ that we will go all out to help them.          (2013·陕西,13)
A.to understandB.understand
C.understandingD.understood

题型:不详难度:| 查看答案
The witnesses ________ by the police just now gave very different descriptions of the fight.                                                             (2013·陕西,14)
A.questionedB.being questioned
C.to be questionedD.having questioned

题型:不详难度:| 查看答案
I got to the office earlier that day,________the 7∶30 train from Paddington.
(2013·大纲全国,25)
A.caughtB.to have caught
C.to catchD.having caught

题型:不详难度:| 查看答案
Volunteering gives you a chance ________ lives,including your own.       (2013·北京,21)
A.changeB.changing
C.changedD.to change

题型:不详难度:| 查看答案
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