"It's an area where there's going to be a lot of activity in the future."

There certainly appeared to be a lot of activity in the main building.

Tom realized that a lot of activity was going on about him.

I came through their lands and found a lot of activity.

There was a lot of activity, surely someone would take her across.

Looking through the window, she could see a lot of activity in the kitchen.

In fact those years saw a lot of feminist activity.

There had been a lot of intense activity in five years.

There was a lot of activity in the surrounding area again today.

There is quite a lot of activity as I come over the hill.