Sentence Fragment/Run-on Sentence Review 2

Do you think that this group of words is truly a sentence?

He was stretching before the start of the race.

We have been practicing our music every day we really enjoy doing this.

And nearly drowned.

After the meal was finished.

She dribbled the ball, she then took a jump shot.

For the past ten years my family has vacationed at the same lake it is located in Michigan.

Could be the easier way to find a solution.

If you want to be a good musician, you must practice often.

So many books, so little time.