SRL for [develop]: He predicts that in one to two years , biochips will be suitable for use in supplemental tests , and after around three years for high - throughput screening ; in five years time it should be possible to [develop] them into general screening tools which will be as easy to use as the pregnancy test kits on the market today .
ARG-2: them | ARG-1: into general screening tools which will be as easy to use as the pregnancy test kits on the market today