They’re arguing on who, on earth, is known for the great discovery penicillin, an effective bacteria killer.
Every evening our eyes tell us the sun sets, while we know that, in fact, the earth ___ us away from it.
Hearing the news, he rushed out, ___the book __on the table and disappeared into the dark.
. She was so angry and spoke so fast that none of us understood ____ she said meant.
At the sight of the policeman, ____ from behind the door.
Only when ___ possible to settle the problem.