9. (A). I must have dropped it.

　　(B). I will have to get some more ink .

　　(C). I will bring it in again.

　　(D). I will try another color.

　　10. (A). The dam was built to catch rain.

　　(B). The dam was designed for preventing floods.

　　(C). The rain filled the dam.

　　(D). The rain destroyed the dam .

　　答案：

　　B D

　　音频文本:

　　9. My pen’s out of ink again.

　　10. Heavy rains caused the dam to collapse.