I think ______ in the old people’s home is great fun.

—You are always full of_________ . Can you tell me the secret?—Taking enough exercise every day.

The dolphins are ______ interesting in the zoo.

—Tom is ill. What’s wrong with him? —Poor boy. His illness is the _________ of eating unhealthy food.

 Some accidents have happened on the road recently. So we should pay attention to the __________ problems.