单选题 Some of the words and sounds used by Celts, the natives of Great Britain, were later ______ the English language.
【正确答案】 C
【答案解析】[解析] 句意:大不列颠土生土长的本地人凯尔特人使用的一些文字和声音,后来融入到了英语中。assimilate使……融合,同化。故C项正确。