[单项选择]No one has（）been able to know who she is.
A. still
B. yet
C. already
D. just

[单项选择]No one has（）been able to know who she is.
A. still
B. yet
C. already
D. just

[单项选择]So far no one has been able to account for the cause of the accident.
A. assess
B. explain
C. describe
D. investigate

[单项选择]Jane owes （　） to her father that she has been able to finish her college education.
A. that
B. much
C. it
D. /

[单项选择]But college has never been able to work its magic for everyone.
A. 但是大学不是对每一个人产生它的魔术。
B. 但是大学没有对每一个人工作出它的魔术。
C. 但是大学从来就没有在每一个人身上显示出它的魔力。
D. 但是大学并没有在每一个人身上显示出它的魔力。

[单项选择]What has the man not been able to do recently


A. Find his glasses.
B. Sit up straight.
C. Get enough rest.
D. Change his tires.

[单项选择]The man has not been able to ______ recently.


A. find his glasses
B. sit up straight
C. get enough rest
D. change his tires

[单项选择]Every one who has visited the city agrees that it is _________ with life.


A. vibrant
B. violent
C. energetic
D. full

[单项选择]Although she did not know Boston well, she made her way ______ to the Home Circle Building.
A. easy enough
B. enough easy
C. easily enough
D. enough easily

[单项选择]I want to know（） she has gone to the factory or not.
A. if
B. when
C. whether
D. that

[单项选择]Which of the following is the one who has killed one man


A. Dan.
B. Tanya.
C. No one.
D. A hors

[单项选择]To find oneself one has to know ______.


A. his strong points
B. his weak points
C. both his strong and weak points
D. what he likes

[单项选择]

Passage One
It has been shown that children who smoke have certain characteristics. Compared with non-smokers they are more rebellious, their work deteriorates as they move up school, they are more likely to leave school early, and are more often delinquent and sexually precious. Many of these features can be summarized as anticipation of adulthood.
There are a number of factors, which determine the onset of smoking, and these are largely psychological and social. They include availability of cigarettes, curiosity, rebelliousness, appearing thought, anticipation of adulthood, social confidence, the example of parents and teachers, and smoking by friends and older brothers and sisters.
It should be much easier to prevent children from starting to smoke than to persuade adults to give up the habit once established, but in fact this has proved very difficult. The example set by people in authority, especially parents, health care workers, and teachers,
A. should be introduced, for it really works at the school where he once studied
B. should not be introduced, for it may cause disturbance
C. should be introduced though it may not work effectively
D. needn't be introduced as long as teachers don't smoke in front of children