I have so often known a change of medicine ____ work wonders.
举一反三
- ___________ that English is so important in work and life now, I would have devoted more time and energy to my English study. A: Should I know B: Should I have known C: Had I known D: Have I known
- Do I have to take this medicine? It _______ so terrible.
- —You seem to have known all about the accident. —______. A: [A] So I do B: [B] So do I C: [C] So I have D: [D] So have I
- I ____a car, so I go to work by underground. (have)
- After winning the bid,I have so much work to do and I wonder when I can get the work ___