问题
选择题
On average, the footprints discovered are 14 to 18 inches long, 5-9 inches wide and much larger than _____ of a human.
A．that
B．ones
C．those
D．one
答案
答案：C
这题考查代词those的用法，those一般代替前文出现的可数名词复数，这句话里代指footprints，that代指前文的可数名词单数或是不可数名词，one泛指可数名词单数。选C。