But before long, my lack of stamina began to tell.

Her apparent lack of interest was beginning to try my nerves.

He knew, too, that his lack of sleep was beginning to catch up with him.

The lack of sleep was beginning to tell on him.

However, a lack of spare parts soon began to ground these aircraft.

Then on the half-hour the lack of a player began to show.

A lack of interest then begins to build amongst the students.

Her frustration and lack of understanding were beginning to turn to anger.

By that time, the lack of fresh fruit was beginning to take a toll on the men's health.

After an hour or two without the microwave the lack began to be felt.