He seemed almost upset at the lack of a fight.

They are both concerned at the lack of progress made with education policy.

Let them see how angry he was at the lack of progress they'd made.

I gazed about me at the lack of life and movement.

I am surprised at your lack of faith in me.

I became frustrated at the lack of freedom in my teachers' thinking.

He was surprised at his lack of reaction to having killed two men.

He was not surprised, or disappointed, at the total lack of response.

I bet you are surprised at the lack of response to your question.

Many participants remain frustrated at the lack of control they have over their money.