【正文】
1. Look! There are some ______ on the desk. A. books B. boxes C. potatos D. apple 2. — Are tomatoes ______ food? — Yes, they are. A. health B. unhealthy C. healthy D. unhealth 3. Eating more fruit and vegetables is good ______ your health. A. at B. for C. to D. about 4. Look! Some beef ______ in the oranges ______ o