问题补充：
---- Mom, when shall we go to Weifang Museum this weekend?
---- Oh, sorry. I’m going to Beijing for a meeting. Saturday . Sunday is OK.
A. Neither, nor
B. Both, and
C. Either, or
D. Not only, but also
答案：
(答案→)A. Neither, nor
B. Both, and
C. Either, or
D. Not only, but also
解析：句意，上文：妈妈，这周末我们什么时候去潍坊博物馆？下文：哦，对不起，我这周要去北京开会。星期六和星期天都不行。Neither, nor既不……也不 Both, and 既 …… 又 Either, or 或者……或者 Not only, but also不仅……而且，根据题意，故选A.
