14. The city is ____ as it used to be.
(A) twice as populated
(B) two time as populated
(C) twice more populated than
(D) two more times as populated

出處：https://www.hopenglish.com/the-biggest-supermoon-in-68-years-2

倍數 + as 形容詞 / 副詞 as

My watch is twice as expensive as yours.（我的手錶是你的兩倍價錢。）

The cheetah runs three times as fast as the zebra.（獵豹跑的速度是斑馬的三倍快。）

※ 這裡是很單純的乘法概念，如果你的手錶是 100 元，那我的就是 100 x 2 = 200 元。

倍數 + as many 可數名詞 / much 不可數名詞 as

倍數 + as many 可數名詞 / much 不可數名詞 as

He has half as many jerseys as his brother does.（他有的球衣數量是他哥哥的一半。）

Taking a bath uses three times as much water as taking a shower.（泡澡使用淋浴三倍量的水。）

倍數 + the size / weight / height / number...of something

My living room is three times the size of yours.（我的客廳是你客廳的三倍大小。）

The Eiffel Tower is about twice the height of the Pyramid of Giza.（巴黎鐵塔是吉薩金字塔的大約兩倍高度。）

倍數 + 形容詞比較級 / 副詞比較級 + than

My watch is twice more expensive than yours.（我的手錶比你的多兩倍價錢。）

The cheetah runs three times faster than the polar bear.（獵豹跑的速度比北極熊快三倍。）

※ 注意喔！最後這種用法是「比原來的數字又多幾倍」，所以假設你的手錶是 100 元，My watch is twice more expensive than yours. 表示我的手錶是你的 100 元又多兩倍，因此是 100 + 100 x 2 = 300 元喔！

與前面提到的這個句子相比：My watch is twice as expensive as yours.（我的手錶是你的兩倍價錢。）表示我的手錶是 100 x 2 = 200 元。這種細節連部分母語人士都不會注意到，使用的時候還是特別小心比較好喔！