题目
用所给动词的现在完成时形式填空,描述校园植物角的变化。1. The little sunflower ______ (grow) taller since last month. 2. Our class ______ (plant) twenty trees around the playground so far. 3. Look! The roses ______ (open) their flowers already. 4. The old apple tree ______ (not bear) any fruit this year.