Ⅰ Amy 在路上遇见了 Sarah,她们展开了一段对话。请你根据方框里的内容填写答语,将对话补充完整。
What to buy: a word book
Where: bookstore
Way: by bus
When: this afternoon
Sarah: Where are you going?
Amy: 1. .
Sarah: What are you going to buy?
Amy: 2. .
Sarah: How are you going to get there?
Amy: 3. .
Sarah: When are you going?
Amy: 4. .

1. I am going to the bookstore.
2. I am going to buy a word book.
3. I am going to get there by bus.
4. I am going there this afternoon.