阅读理解
A. 阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳答案。
A plant is a living thing. It uses its many parts to grow from a small seed to a large plant. Each part helps the plant stay healthy. Plants also need sunlight to grow. They get light from the sun and minerals from the soil. These things help the plant stay alive and grow.
1. Which word can be filled in the empty box?
A. Leaves. B. Sticks. C. Bushes D. Grasses
2. Which part might grow around the seeds?
A. The stem. B. The flower. C. The root. D. The fruit.
3. Which sentence is TRUE according to the passage?
A. A plant grows flowers under the ground. B. Flowers can grow into new plants.
C. Not all plants have fruit. D. The stem helps hold the roots up.
4. What's the passage mainly about?
A. Plant parts. B. Plant seeds. C. Plant leaves. D. Plant roots.
5. In what subject might you learn this passage?
A. Geography. B. Biology. C. Physics. D. Chemistry.