پرسش‌ها با تگ (گرامر)

Celluloid and plastics have largely replaced genuine ivory in the manufacture ……… buttons, billiard balls, and piano keys.

The chemical facts ……… as a by-product of their search for gold became the basis  for modern chemistry.  

—— east of the Mississippi River.

A leech, after —— the skin, is best removed by the application of either salt or heat.  

During the course of its growth, a frog undergoes a true metamorphosis ……… with  a fishlike larval stage.

Thirty-eight national sites are known as parks, another eighty-two as monuments,  and ………

The jury ultimately recommended Lloyd to face the death.

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