Q14. The herring gull population in the North Atlantic is now thirty times larger [url]than in[/url]the beginning of the century.
(A) than in
(B) than they were at
(C) than it was at
(D) compared to than of
(E) compared to what they were at
Q4. The Census Bureau reports that more than three-fifths of all married couples in the United States now have two incomes, significantly more than [url]earlier decades did[/url].
(A) earlier decades did
(B) earlier decades
(C) in earlier decades
(D) earlier decades have
(E) that in earlier decades
想請問一下這二題的差別為何處? 如果都是now 與 過去時間的比較,為何一個答案more than 後面直接加 in ,而另外一個答案卻不行呢?