A.The author realized that he needed the company of his colleagues at work.
B.The author found that he should have taken advantage of his intellectual ability.
C.The author found that he had been trained to deal with problems in the wrong way.
D.The author expected to succeed by using the qualities his education had developed when leaving university.

A.changed
B.developed
C.weakened
D.required

A.The author was ill-prepared for real-life experiences
B.The author found it necessary to view his colleagues as competitors
C.The author could deal with new decisions
D.The author realized the importance of individualism in his work

A.the type with some possible answers
B.the type related to the cost of sales
C.the type with a right answer
D.the type with a wrong answer

A.negligible
B.inconsiderable
C.extensive
D.constant

A.You're welcome.
B.Never mind.
C.Have a great day!
D.It's very kind of you to say so.

A.Let's drop it.
B.Why not?
C.No doubt about it.
D.Let me think about that and get back to you.

A.It is necessary for teens to join in sports and positive social activities.
B.Lack of adequate sleep puts teens at risk of performing poorly at school
C.Modern technology has something to do with teens' sleep problems.
D.Teens' sleep is linked to their relationship with people around them.

A.The harder
B.Hardest
C.Harder
D.The hardest

A.gave
B.gives
C.was giving
D.was given