I have worked on three Saturdays.
举一反三
- I have worked on three _____ Saturdays. ?xml:namespace>
- I regret __________ hard at school, or I would have passed the exam. A: to have not worked B: having not worked C: not to have worked D: not having 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
- I'm tired out. I all afternoon and I don't seem to have finished anything. A: worked B: have worked C: had worked D: have been working
- I first met Mary three years ago when we ______ in a middle school together. A: have worked B: had been working C: were working D: had worked