单项选择题
A.Because she’d been born that way. B.Because a horse had kicked her. C.Because she’d had a very high fever. D.Because she’d had a bad fall.
A.know the meaning of their conversations B.realize that they can communicate with each other C.realize that they can make speeches D.could understand their conversations
A.The coal by-product. B.Additive. C.Fine-as-powder fly ash. D.Both B and