a/an + 文具名词 — 英语情景题
题目
开学第一天，Sam 和 Lily 在教室整理文具。请从方框中选择合适的句子补全对话，将序号写在横线上。
A. This is an eraser. B. This is a pen. C. This is a ruler.
Sam: Good morning, Lily!
Lily: Good morning, Sam! Look at my school things.
Sam: What's this?
Lily: (1)________ I write with it.
Sam: And what's that?
Lily: (2)________ It can clean the words.
Sam: Is this your ruler?
Lily: Yes! (3)________
Sam: You have nice school things!