_____ concern about food safety seems to be ______ subject that is being discussed all over the world.
Most people there received so little education that they were __________ of the law. As a result, they caused many troubles and hurt a lot of __________ people.
The city is familiar __________ because I studied here for four years.
We are at your service. Don't __________ to turn to us if you have any further problems.
You can __________ five things that __________ Chinese culture.
There are 30 people __________ in the traffic accident but the injured __________ rescued at once.