Q39:The survival of a rare New Zealand species of mistletoe that produces spectacular sprays of scarlet flowers is threatened both because their leaves are extremely tasty to a voracious opossum species and also because their flowers are pollinated by two species of birds whose populations are in decline.A. is threatened both because their leaves are extremely tasty to a voracious opossum species and also because theirB. is threatened both because its leaves are extremely tasty to a voracious opossum species and because itsC. is threatened both because its leaves are extremely tasty to a voracious opossum species and also itsD. are threatened both because its leaves are extremely tasty to a voracious opossum species and itsE. are threatened both because their leaves are extremely tasty to a voracious opossum species and because their Answer: A B为什么要用its指代flowers???是因为their只可以指代人,its指代物? 主语是survival单数,所以用is;mistletoe是单数所以用its,你得用逻辑看懂意思,看看指代的到底是谁。。。。 -- by 会员 sisichen666 (2012/12/9 18:41:38)
还可以偷懒结合上下文的谓语动词形式来判断 |