单项选择题

Questions 14 to 17 are based on the following passage. Cola became a carbonated drink

A. by sheer accident.
B. by careful studying.
C. by complicated experiments.
D. by the clerk’s careless work.
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单项选择题
According to Linda, a gift
A. should be decorative.
B. should be impressive.
C. should never be used.
D. should have useful functions.
单项选择题
Why are hobbies today more important than ever
A. We need something to relax.
B. We have more free time.
C. We realize their importance.
D. We can get pleasure from hobbies.
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