题目内容

Witnesses said that the car fire was ________, as they saw a middle-aged man pour petrol over the car and set it on fire.

A. deliberate
B. natural
C. arbitrary
D. visible

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He’s had a ________ of business failures, but people continue to trust him because they know he will eventually succeed.

A. situation
B. routine
C. framework
D. Sequence

A few thousand years ago, people lived about 30 years. Now many people live over 75 years. Obviously, we have already ________ our lives to an amazing degree.

A. attained
B. extended
C. stretched
D. enriched

There is considerable ________ with respect to attitudes toward technology, mostly from one generation to another.

A. variation
B. privilege
C. convention
D. deficiency

Just because someone is good or bad at one thing, it does not ________ that the person will also be good or bad at other things.

A. engage
B. involve
C. guarantee
D. concede

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