1. (2016七上·大江东期中) 听下面一段对话，回答下列三个小题。

Excuse me, Grace. I lost my eraser this morning.<br />Okay, is this red eraser yours, Frank?<br />No, mine is white.<br />And are these your keys?<br />No. They are Bob's.<br />Well, what's his telephone number?<br />It's 8-6-3-2-9-0-1. Oh, no, it's 8-6-3-2-9-1-0.<br />Excuse me, Grace. I lost my eraser this morning.<br />Okay, is this red eraser yours, Frank?<br />No, mine is white.<br />And are these your keys?<br />No. They are Bob's.<br />Well, what's his telephone number?<br />It's 8-6-3-2-9-0-1. Oh, no, it's 8-6-3-2-9-1-0.

1. （1） What color is Frank's eraser?

   A . Red. B . white. C . We don't know.
3. （2） Whose keys are these?

   A . Frank's. B . Grace's. C . Bob's.
5. （3） What's Bob's telephone number?

   A . It's 683-2901. B . It's 863-2910. C . It's 863-2901.