根据句子意思及所给的词首字母或汉语提示，完成下列单词

1. There are(有) three people(人) in my f__________, my father, my mother and I.

2. My aunt is a n__________. She works in a hospital.

3. The box is very h__________. I can't carry it. Could you help me?

4. Please give me two __________(瓶) of water.

5. I __________(通常) go shopping with my mother on Sundays.

下列关于一株小麦和一只猫的叙述不正确的是（　　）

A．细胞是它们的结构和功能单位

B．它们的发育起点都是受精卵

C．它们都由细胞→组织→器官→系统

D．小麦的花、猫的心脏都属于器官