Some of the young mothers who become homeless also have deep personal problems, but many others simply lack a place to live.

He simply lacked direction and the experience to know what to do.

They simply lack the maturity to understand the possible consequences of their behavior.

But cities, on their own, simply lack the resources to solve these national problems.

"We simply lack the resources to protect these people indefinitely," a senior official of the national congress said.

Parents of two or more children may simply lack the time to attend.

Again, she simply lacked the necessary information to make any kind of intelligent assessment.

Most of the nation's 2.2 million registered nurses simply lack the training for these new jobs.

Besides, men at work in casual clothes simply lack authority.

The others simply lack the ability to extend their appeal beyond the Republican base.