It is said that the early European playing-cards _________ for entertainment and education.

Tim, drink your milk and set a good example ______ the other children!

These days the government has issued several economic policies that will________prosperity of manufacturing industry.[ ]

Would you like to go and see Monsters University (《怪兽大学》) with me tonight—I’d love to, but I ______ it twice.

Her mother does notof her going to study in the United States alone.[ ]