题目

用括号中所给单词的适当形式完成下列句子 1. All the students in Shanghai should help fight        to protect the environment. (pollute) 2. Now the good method is        used in the experiments. (wide) 3. The old man was        to the policeman who found the lost car for him. (thank) 4. For the        time he became worried about the future because of the global financial crisis (金融危机). (one)  5. Mother bought a nice dress the day before yesterday, and now she is dressing       . (she) 6. Qingming Festival is an important Chin某工厂准备买一套20万元的设备，实际节约了15%，节约了多少元？