【题目】Although knocked down by a car, he managed to ______ to his feet.

【题目】My normal monthly emails to and _______ pen pals have disappeared with my tight schedule.

【题目】I refuse to lie about it, because it’s against my _____.

【题目】My boss is very generous, and he is ______ generous when we get a big order.

【题目】Can we stop the ______ of the world’s deserts and save the land that man depends so much on?

【题目】There was a long wait at the reception desk, ______ everyone was checking in.

【题目】Mrs. Taylor went around the shops, ______ what she thought was necessary.

【题目】Bruce, I can’t stand _______ near Mike. He refuses _______ talking with others in class.

【题目】The murderer, who was _____ to death by the judge last week, was only 20 years old.

【题目】The spread of the Ebola virus in Nigeria is believed _______ by August, 2014.