---What did our teacher do?---He raised his arm as a(n)        for us to stop.

Don’t blame yourself too much. Everyone has his ______ and weaknesses.

 If you are looking for a ______, you can make it when it is on sale.

 You are _________ to have such a good teacher.

 ______ came that he and his girlfriend had broken up just because he didn’t keep his ______ again.

 Bill was doing a lot of physical exercise to build up his_________.

As we know, too much ________ to Xrays can cause skin burns, cancer or other damage to the body.

The manager of the company told us that very little ________ was made of the waste material in the past.

At the meeting they discussed three different __________ to the study of mathematics.

—Can you help me with this problem?—It's beyond my __________.I didn't work it out, either.

．Hundreds of people gave their lives in __________ of freedom.

Beijing Man used fire for cooking food and also for light, warmth and ________ wild beasts.

  Being honest is usually thought of as a virtue and undoubtedly this is the ________.

  The professor combines different ________ in the same speech.

  In this experiment, the famous professor showed three different ________ to the study of physics.(2012·河北保定中学月考)

According to news report, personal ________of guns is illegal.

More and more people choose to shop in a supermarket as it offers a great ________of goods.

The girl seems to have a ________for drawing.

He had the right to take ________ of the house and farm after his father died.

She was put under house arrest two years ago but remained a powerful ________ in last year’s election.