Hi~ instructor
A question regarding "Subgroup Modifiers" in Chapter 12 of Manhattan SC baffles me a lot recently.
In P240, there are three example sentences:
Right: This model explains all known subatomic particles, some of which were only recently discovered.
Right: This model explains all known subatomic particles, some of them only recently discovered.
Right: This model explains all known subatomic particles, some only recently discovered.
My question is whether these two sentences are correct or not?
#1 As for subatomic particles, some of which were only recently discovered.
#2 As for subatomic particles, some of them were only recently discovered.