GWD1-Q16:
Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater
proportion than it was in any previous election.
A. a greater proportion than it was
B. a greater proportion than
C. a greater proportion than they have been
D. which is greater than was so
E. which is greater than it has been
ANS:B
這題在網路上看了很多討論之後,覺得B比較正確,
但還是有個疑問,
A: "it"錯誤指代了前面的proportion in 1992.
同類事物但不相同,應該用that/those指代,
請問A是錯在這個點嗎??