Ⅰ. 单句语法填空
1. Scientists have produced powerful arguments (argue)against his ideas.
2. I appreciate your hard work, but I can not give you a guarantee that you will surely get promoted(promote).
3. He left me a good impression(impress) the first time I met him.
4. The measures should be implemented effectively(effective).
5. Students of these programs are normally(normal) educated separately from other students.
6. If you are interested, please sign up at the office before 5: 00 pm so that we will make necessary arrangements (arrange).
7. I felt as if I had seen my childhood (child)from another space: happy and carefree.