通读对话，掌握其大意。然后从后面所给的六个选项中选择

可以填入相应空白处的五个答案。

A: Where is my ruler? I can't find it. 1_____

B: Certainly. 2_____

A: It's yellow.

B: 3_____ Is the one under the teacher's desk yours?

A: 4_____ Oh, no. It's not mine.

B: Sorry, I can't find it.

A: 5_____ I'll buy a new one.

A. That's all right.

B. Look!

C. What color is it?

D. Where is it?

E. Let me see.

F. Could you help me, please?