[問題]賴水信高分托福文法P386第31題

[jackeyliu77]

31. The main reason an object can float on water ______ density is higher than of water.
(a) is because its
(b) because its
(c) is that its
(d) because is its

答案是Ｃ

如果是Ｃ那麼is 的作用是什麼呢？不是有can當動詞了嗎？
煩請解答感激不盡

[汪汪北鼻]

31. The main reason an object can float on water ______ density is higher than of water.
(a) is because its
(b) because its
(c) is that its
(d) because is its

答案是Ｃ

如果是Ｃ那麼is 的作用是什麼呢？不是有can當動詞了嗎？
煩請解答感激不盡

這題好怪，如果翻成中文不就是 "一個物體能浮在水上的原因是因為它的密度比水大"
怪哉?

[pohanchiu]

The main reason [(+ that)an object can float on water] is that its density is higher than of water.

The main reason [(+ that)an object can float on water] is because of its density (being) higher than of water.

僅供參考

[jackeyliu77]

了解了，感謝你的指教