People tend to live more happily and longer if they are ________ about life.

Only when public attitudes towards thedisabled advance as far as laws have ________ be able to take the rightfulplace in society.

Can you believe _______little children can finish ______ difficult problems in______ a short time—I can’t believe it until I see it with my own eyes.

urprised to know that ________ two top students were caught stealing in thesupermarket. Worse still, _______ third one was found fighting with others.

They have organized games and the staff clowns(小丑).