There are several ways in which airline service can be ____ categories.

If a company decreases health benefits for his employees, they should increase salaries to ______ the workers.

I fail to pass the exam although I worked very hard. I should ______ the causes of my failure.

when you do yoga, try to ______ your breathing,. Don＇t breathe too fast and make sure you breathe only through your nose.

It was difficult to ______ how many people had been wounded in the earthquake.

A bee that has found honey is able to ______ to other bees the information they need in order to collect honey.

Sam ______ the gift of imagination from his family, but he lacked the driving power to take action.

It is well known that China is a country with rich natural ______ and a very big population.

Afte a (an) ______ physical exam, my doctor said I was in good condition except that my blood pressure was a little high.

There is widespread concern that the rising unemployment may _____ a threat to social stability.

We often ______ that when other people do the same things as we do, they do them for the same reasons, but this assumption is not always reasonable.