根据句意及首字母提示填空。

1. Mum, here is my good f_____.

2. Look at this p_____ of my family.

3. My pen friend is c_____ here next week.

4. My a_____ is my father or mother's sister.

5. Your father or mother's brother is your u_____.

6. Your aunt's son is your c_____.

7. You and your sister are your parents' son and d_____.

下列对变量的定义中，不能定义a为变体变量的是

A．Dim a As Double

B．Dim a As Variant

C．Dim a

D．a=24