() among the peasants for many years, he knew them very well
A: Working
B: Having worked
C: To worked
D: Being worked
A: Working
B: Having worked
C: To worked
D: Being worked
举一反三
- _____ in the company for three years, Mark has become experienced in business negotiations. A: Having worked B: Having been working C: Have worked D: Worked
- ________ in the company for three years, Kevin has become experienced in foreign trade. A: Having worked B: Have been working C: Have worked D: Worked
- He felt very tired because he ______ 18 hours without a rest. A: had worked B: worked C: was working D: had been working
- He in the company since he graduated from Lanzhou Vocational College two years ago. A: worked B: has been working C: had worked D: was working
- By the end of this year, he ___________ in this factory for as many as thirty years. A: will work B: will be working C: have worked D: will have worked