Those people are speaking a language I can＇t understand. They must be ____.

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.

It was about 30 seconds before Alex ______ from the water, we were quite scared.

It is so difficult to______ the bottom of the ocean because some parts are very deep.

Given the chance to show the ability, he regained the ______ and began to succeed in school.

Alan was always in trouble with the police when he was young, but he’s now a ________ married man.