A lot has changed in the last 5 years alone.

I was just thinking that a lot has changed in the last few months.

A lot has changed in the 12 days since then.

A lot has changed since 1978 when I was born.

By the 20th century a lot of things had changed in music.

Well, a lot of things would change, she told herself.

Since the 1960s a lot has changed in the economy of the area.

"A lot of things have changed since I last saw you."

A lot has changed since the last survey in 1915.

A lot of things will change completely from what we were used to.