He hadn't been paying much attention to which ship's materials were becoming scarce.

Since our previous review, additional materials have become available.

As a result, the more anchor points added, the harder the material will become.

Once the preserved material has become frozen, it is relatively safe from further damage.

For some comics, it seems as if the worse their lives get, the richer the material becomes.

The material presented as being of whole cloth, on that theory, had become suspect.

The worse the material becomes, the harder the actors work for increasingly less effect.

These materials have become popular and are sought-after by the public.

Yet within a couple of pages, the material and the writing become so interesting that it's hard to put the book down.

These materials become superconducting under pressure and also upon doping.