题目
题型：同步题难度：来源：
B. To improve
C. Improve
D. Having improved
答案
核心考点
试题【____ their service, the workers of the hotel are active in learning English. [ 】；主要考察你对非谓语动词等知识点的理解。[详细]
举一反三
[ ]
B. cleaning
C. cleaned
D. being cleaned
| Yesterday my English teacher asked each student write a composition title "The Greatest Achievement of My Life". I am not sure how to write about it. I"ve thought it over for a long time. I have done a great deal things. Coming to America, get a job and meeting new people were my achievement. I think my greatest achievement was learning English. Though sometime I don"t understand everything people are saying, but each day I get better and better. I told my teacher this was difficult composition to write. Above all, it is hard to measure everything you have done. | 1______ 2______ 3______ 4______ 5______ 6______ 7______ 8______ 9______ 10______ |
| Edison was the first scientist ____ a modern research and development center. | |
[ ] | |
| A. built B. having built C. to build D. to be building | |
| ____ the project as planned, we"ll have to work two more hours a day. | |
[ ] | |
| A. Completing B. Complete C. Completed D. To complete | |
| We students should do what we can _____ the environment being polluted. | |
[ ] | |
| A. respond B. to keep C. force D. to stop |