单项选择题

Which of the following reasons can best explain the author’s feeling of self-satisfaction（）

A．His house was equipped with advanced water-saving facilities.
B．Money spent on upgrading his household facilities was worthwhile.
C．He made contribution to drinking water conservation in his own way.
D．He could have made even greater contribution by changing his lifestyle.

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单项选择题

It can be inferred from the passage that（）

A．George lied at the beginning and then became serious.
B．George was forced to tell a lie and then regretted.
C．Mr. Cattanzara was doubtful about George throughout.
D．Mr. Cattanzara was surprised at George’s reading plan.

单项选择题

What is the main purpose of the study（）

A．To reveal cultural differences and similarities.
B．To investigate ways of physical punishment.
C．To analyze child behaviour across countries.
D．To expose cases of child abuse and punishment.