根据句意和所给汉语完成句子。每空一词
1. The boy is my _________（弟弟）. His name is Jack.
2. — How many _________（天）are there in a week?
— Seven days.
3. My mother’s mother is my _________（外祖母）.
4. This is my _________（爸爸）and that is my _________（妈妈）. They are my parents.
5. My grandfather and grandmother are my _________（祖父母）.
6. Mr. Wang is a friend of my _________（家庭）.
7. Is the girl your _________（妹妹）?
8. _________（这些）are my friends.
9. Who are _________（他们）?