548. On the Great Plains, nineteenth-century settlers used mud and grass to build their homes, doing it without timber and nails. (A) settlers used mud and grass to build their homes, doing it without (B) settlers used mud and grass to build their homes, did it without (C) settlers used mud and grass to build their homes, making them while not having (D) settlers used mud and grass to build their homes, making do without(D) (E) settlers’ homes were built of mud and grass, making do without 答案是D,简直是荒谬阿。。。。。make do 是什么结构阿!!!我感觉应该是A |