听下面一段材料,回答第1-4题。 |
1. What is the most important part of dog-care? |
A. Proper feeding. B. Active exercise. C. Clean. |
2. How long should food be left before a dog? |
A. Not more than twenty minutes. B. Not more than thirty minutes. C. Not more than an hour. |
3. Why does a pet dog need active exercise? |
A. To build its strength B. To help it sleep well. C. To keep it lively. |
4. What kind of dog needs to run in an open field? |
A. An old one. B. A small one. C. A big one. |