Were you _______ when you saw that wildanimal

It’s a Clean-Up Day tomorrow. Let’s help _________ signs.

Nanjing isn’t so large __________ Shanghai,however, it’s the second __________ city in East China.

While there are some differences in the educational systems in many countries in the world, education itself is ______.

To see a young couple loving each other is no _________, but to see an old couple loving each other is the best sight of all.