题目

根据短文内容，从短文后的选项中选出能填入横线处的最佳选项，选项中有两项为多余选项。 Haveyou finished your lesson, George? said Mr. Prentice to his son, who hadlaid aside his book and was busy making a large paper kite. No,father, replied George, hanging down his head. Becauseit is so difficult, father. I'm not sure that I shall learn it.My memory is so bad. IfI were to promise you a holiday on the thirtieth of the month after next, doyou think you would forget the date? Youare good at skating, and flying your kite, and playing footballs, aren't you? Ye Please make a list of ______ the celebration will need for the coming New Year and I’ll do the shopping.         A. what               B. which               C. when                       D. where