4.It is said that the early European playing-cards ____ for entertainment and education.
It has always been the _____ of our firm to encourage workers to take part in social activities.
The most important _____ of his speech was that we should all work whole-heartedly for the people.
When I worked as the general manager of the firm, I sometimes had _____ to visit London on business.
The managing director promised that he would _____ me as soon as he had any further information.
These plastic flowers look so _____ that many people think they are real.