[单项选择]It's ten years since the scientist ______on his life's work of discovering the valuable chemical element.
A. made for
B. set out
C. took off
D. turned up

[单项选择]A person's calorie requirements vary ______ his life.
A. across
B. throughout
C. over
D. within

[单项选择]He has been interested in computer since his childhood, so he specialized______ computer science when he was in college.
A. on
B. at
C. for
D. in

[单项选择]Since his injury was serious, the doctor suggested that he ______ in the game.
A. did not play
B. must not play
C. not play
D. not to play

[单项选择]The author was adopted since his childhood, so he ______.
A. left his step mother to try to find his birth parents
B. resented his adoptive mother covering the truth
C. was obsessed by the feeling of abandonment
D. felt grateful for his adoptive parents

[单项选择]Since his children have all grown up, he has nothing now.
A. to worry about
B. worrying about
C. to be worried
D. worried

[单项选择]Since he lost his job ______.

[单项选择]

Text 2 Ever since John Burrows and his wife Carol opened their first hair salon in 1983, they have been taking on apprentices. "In my generation, an apprenticeship was the way to learn a trade so it was the obvious way for us to get the skilled staff we needed," Mr. Burrows says. Today, the Burrows’ salon, Upper Cut in Weston-super-Mare, employs 35 people. Of the 16 stylists, 13 progressed through apprenticeships and Mr. Burrows believes a strong culture of training is integral to the company’s success. "Without the apprenticeships scheme our business wouldn’t be anything like the size it is today," Mr. Burrows says. The high-quality training the apprenticeships provide guarantees growth. The more skills staff have, the more effective a business will become. Although Mr. Burrows is an advocate of the scheme, he concedes that occasionally he has suffered problems. They have experienced episodes of theft, poor time keeping and bad discip
A. makes her free up some time to get on with other things.
B. brings many creative ideas to her for innovating her shops.
C. helps her to offer someone else the opportunity to learn a trade.
D. saves her a lot of energies to expand the business.

[单项选择]Because of his excellent administration, people lived in peace and ______ and all previously neglected matters were taken care of.
A. conviction
B. contest
C. consent
D. content