Although he died poor, he left his children a ________ of love and respect.
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Einstein’s theory of relativity seemed________ when it was first introduced.
A new study published in the Science journal suggests the increasing amount of carbon dioxide being absorbed by the seas is causing them to turn acidic with ________ speed.
The attitudes, values, and behaviours of parents toward their children clearly influence the latter’s patterns of development, ________, children’s characteristics influence parental attitudes and behaviours.
Dr. Smith has found ________ proof of early man in Africa.