The four million year old fossilized skeleton known as Lucy is so
small compared with many other skeletons presumed to be of the
same species ,and so some paleontologists have argued that Lucy
represents a different lineage
.
1) presumed to be of the same species ,and so
2) presumed to be of the same species that
3) presumed that they are of the same species , and so
4) that they have presumed to be of the same species, so that
5) that they have presumed are of the same species ,and
which one is the best? |