Mary had taken _____ to see that her guests had everything that they could possibly want.

We have strong __________ for believing that the mine accident in Heilongjiang was due to the poor management.

 Out of        for the poor children, the rich man gave them some money and food.

When I worked as the general manager of the firm, I sometimes had _____ to visit London on business.

As a parent, you ought to set a better _____ to your children, who learn bad behaviors quickly.