28.The largest collection ever found in England was one of about 200,000 silver coins, _____ over 600 years old.
A.all of which B.all of it C.all of that D.all of them
28.The largest collection ever found in England was one of about 200,000 silver coins, _____ over 600 years old.
A.all of which B.all of it C.all of that D.all of them
D