A wildlife expert predicts that the reintroduction of the caribou into northern Minnesota would fail if the density of the timber wolf population in that region is more numerous than one wolf for every 39 square miles. A) would fail if the density of the timber wolf population in that region is more numerous than B) would fail provided the density of the timber wolf population in that region is more than C) should fail if the timber wolf density in that region was greater than D) will if the density of the timber wolf population in that region is greater than E) will fail if the timber wolf density in that region were more numerous than 大家给看看这个D是什么啊,是不是少印了。我选E当时,白勇说IF用了虚拟语气,主句没有对应。请大家给指点一二。 |