[单项选择]Although some scientists______the credibility of the work of their assistants, they also______their experimental data.
A. (A) take credit for … appropriate
B. (B) confirm … exploit
C. (C) doubt… revisit
D. (D) undermine … discard
E. (E) suspect … utilize

[单项选择]Although some scientists ------- the credibility of the work of their assistants, they also ------- their experimental data.
A. (A) take credit for ... appropriate
B. (B) confirm... exploit
C. (C) doubt... revisit
D. (D) undermine... discard
E. (E) suspect... utilize

[单项选择]Although some students graduate from junior high school, they are ______ illiterate, never having learned to read or write well.
A. gradually
B. virtually
C. continually
D. internally

[单项选择]Although some old people live near their sons or daughters, ______.

[单项选择]Human language is ______ to humans although some of the distinctive features of human speech may be observed in other species.
A. individual
B. unique
C. private
D. personal

[单项选择]Although, some students graduate from high school, they are virtually illiterate______ writing a business letter.
A. in the event of
B. in the light of
C. in case of
D. in terms of

[单项选择]Although there is some truth to the fact that Linux is a huge threat to Microsoft, predictions of the Redmond company's demise are, _________, premature.
A. saying the most
B. to say the most
C. to say the least
D. to the least degree

[单项选择]Although Ms. Brown found some of her duties to be ______, her supervision of forty workers was a considerable responsibility.
A. ambiguous
B. provisional
C. menial
D. unique

[单项选择]Although the sport is very popular, some people are still ______.
A. expanding its equipment
B. asking for instructions
C. afraid of going down the mountainsides
D. curious about the sport

[单项选择]

Passage Four
Sometimes teens need to have some time away from their families. They may want’ to move out of the family home for a while.
Many parents will say no to this demand. But experts say it might be a good idea to let your teens live with a friend or relative.
"It was the break I needed at the time," said Richard Lerner. He is talking about the time he spent living with his grandmother when he was 15.
"It allowed me to be a different person than I was with my parents." Lerner said. He now heads the Institute for Children, Youth and Families at Michigan State University.
Experts say teens living away from their families can test new ways of thinking and getting along with people. They may see new solutions (解答) to problems.
This is different from running away, the experts stress. Runaways are often fleeing serious problems.
Some teens who want some time away from family attend a structu
A. built
B. stuck
C. organized
D. drunk

[单项选择]Some of these studies (have shown) that although some people have trouble (to fall asleep), others have an (equally) difficult time (waking up).
A. have shown
B. to fall asleep
C. equally
D. waking up

[单项选择]Although we still have some problems to face,______our work has been successful.
A. by all means
B. in the long run
C. by and large
D. on the run