一个四倍体的某植物体细胞与一个二倍体的另一种植物体细胞进行杂交，如果形成的杂交细胞中

补全对话 根据对话内容，从方框中选出适当的选项补全对话（ 共4小题， 每小题1分，计4分）
Nick : Mum!
Mum:     小题1:    
Nick : Is my computer game on the table?
Mum: No, it isn’t．It’s on the bookcase.
Nick : Oh．  小题2:     Are they on the bookcase, too?
Mum:      小题3:    They are on the chair．
Nick : OK．And where are my keys?
Mum:      小题4:     
Nick: Oh, yes．Thanks, Mum.

A. Yes?         B. No, they aren’t. C. Where are my books? D. The keys? They’re on the table.