用括号中的词填空。

(do  does  can  don't)

1. On Sunday, I ________ watch TV. I must do my homework.

2. ________ her daughter have a nice English name?

3. ________ you spell the word?

4. ________ his grandparents like him?

5. —What ________ your uncle love?

    —He loves sports.

下列方法中，不能得到可遗传变异的是[ ]

A. 进行品种间杂交，之后进行选育            

B. 用搭载过太空船的种子进行繁殖

C. 用药物处理植物种子，之后进行选育        

D. 选育水肥充足条件下生长健壮的农作物