| 听下面一段材料，回答第1-4题。 |
| 1. What is the relationship between the speakers? |
| A. Teacher and student B. Grandpa and Granddaughter C. Boss and secretary. |
| 2. What does the man think of the typewriter? |
| A. Slow B. Unreliable C. OK |
| 3. What once caused the loss of papers? |
| A. There was a power cut B. The battery ran down C. The computer was broken |
| 4. How did the man finish his paper? |
| A. He used a typewriter B. He used a word processor C. He used a computer |