It was not until she came to see us ____ her mother was ill in bed.
The lion is considered a(n) ________ of courage and power, and the other animals see him as kings of the forest.
— Shall we go to see the snow sculptures(雕塑)?— _______.
Do ________ you think is right _________ difficulties you may have.
— I phoned you at about three this afternoon, but no one answered.— Oh, that was probably _______ I was doing exercise outdoors.
Everyone knows that ______ paper was invented by _______ Chinese.