One possible alternative to the pressure test would involve tightening restrictions on tailpipe emissions.

An alternative to hypothermia caps involves pumping cold water through a specially adapted blanket, cooling the whole body.

An alternative to concurrent validity involves comparing a test score at one point in time with another measure of language performance obtained sometime subsequently.

A more costly alternative for a candidate intent on seeking a major party nomination involves filing as for that party's primary in a particular state.

The alternative would involve a long, time-consuming climb down.

But the alternative involves developing any number of health problems, many of them life-shortening and highly unpleasant.

But the high-speed alternative involves costly equipment, which could be a major obstacle to success.

A politically-controversial alternative would involve importing low-sulphur coal from overseas.

Yet the alternative - one of the full-time teaching jobs he has applied for - may involve too much commitment.

The first alternative involved a tunnel from the bridge to Gravdalsvatnet, which would be the shortest route.