Do you have _________ eraser?

A. a        B. some        C. an          D.many

Do you have ________ eraser?

[　　]

A．a　　B．an　　C．some

Read the following sentences and the given choices and then pick out the most appropriate one.（认真阅读下面句子，选出最佳答案。）

Do you have ________ eraser?

[　　]

A．a

B．some

C．an

(补全对话)

A）Li Lei: ______ me, Tom. Do you have ______ eraser?

Tom: Sorry， I ______.

Li Lei: Do you think David ______ one?

Tom: I think ______. You can ask ______.

Li Lei: David, may I have ______ eraser, please?

David: Sorry, Lucy has ______ eraser. Please go and ask her.

Li Lei: Excuse me, Lucy. May I ______ David’s eraser?

Lucy: Certainly. Here you are. But you must give it back to him soon.

Li Lei: OK. ______ very much.