专四

单选题The mother needs ___________ bottle feeds for she doesn't have enough milk to breast-feed her baby.

A.extra 
B.additional 
C.supplementary 
D.surplus

参考答案:C进入在线模考
【译文】这位母亲需要增补牛奶来喂养孩子.因为她奶水不足。
【解析】形容词的含义。extra指“额外的,外加的,附加的”,即超出平常的、所需的或所期待的量:additional“附加的,另外的,外加的”;supplementary“补充的,增补的,追加的”;surplus“剩余,过剩,盈余”。根据句意.这位母亲奶水不够,所以要补充、增补牛奶等喂养品,正确答案应为C。