Scientists have discovered amazingevidence showing how the human body rebuilds _______ while we sleep

He is a man of few words and it is hard to ________ his thoughts.

With the development of agriculture, the people_____ village I taught arenow living a happy life.

Excuse me. Can I take a seathere —__________. Thewoman who sat here will be back soon.

What honest boy! And he is best student of all.