It's a good deal. ✬

We had a good deal of snow last winter. ✬

It takes a great deal of practice to master a foreign language. ✬

We have to do a great deal of reading. ✬

They drink a good deal of tea in England. ✬

On the one hand we suffered a heavy loss, but on the other hand we learned a great deal from the experience. ✬

All right. It's a deal. ✬

Tom regretted having wasted a great deal of his life. ✬

He's racking his brains about how to deal with the matter. ✬

The gambler lost a good deal of money. ✬