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.