单项选择题

Scientists conclude that nonsmokers who must ______ inhale the air polluted by tobacco smoke may suffer more than the smokers themselves.

A. involuntarily
B. instantaneously
C. spontaneously
D. reluctantly

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单项选择题

With the help of a metal detector, the team discovered that wreckage bag scattered over a 1,000 square feet area, and often ______ beneath sand and seaweed.

A. burying
B. buried
C. bury
D. was buried

单项选择题

______ , she does get angry with him sometimes.

A. Very much as the mother loves her son
B. Much though the mother loves her son
C. Though much the mother loves her son
D. As the mother loves her son much

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