____ volcanoes now for many years, I am still amazed at their beauty as well as their potential to cause great damage.

Are you going to attend the meeting_____ next Saturday?

Many parents happily pay a lot of money, only ______ the tours are not rewarding enough for their children.

John received an invitation to dinner, and with his work ______, he gladly accepted it.

The traffic problems we are looking forward to seeing      should have attracted the government’s attention.