1.She gave a vivid (describe/description) of the scene.ª¤

2.His (behavior/behave) towards me is unfriendly.ª¤

3.I was (disappointing/disappointed) at failing to prevent him from doing that.ª¤

4.The foreign guests were (amazed/amazing) at the rapid development of China.ª¤

5.Because of modern (technology/technique),we have a much higher standard of living.ª¤