A. they are likely to be annoyed if they are not B. they may give valuable presents C. their presence could provide future benefits D. they may help with the expenses of the wedding 参考答案:C 答案解析:根据文章第一段第二句话最后other people whose good will may be of advantage to him可以判断,有些客人是对新娘父亲的生意有利的,因此应该选C)。