09：Pat's Birthday
循序漸進學英語系列9：Pat's Birthday（兒童英語教材典範之作）
18.
1. No it is not (isn’t).
2. Yes, they can.
3. No she is not (isn’t).
4. They are standing around Grandfather.
5. Grandfather. / Grandfather does.
6. She is writing on a/the whiteboard.
7. Yes, she does.