Monetary policy hasn’t been working because interest rates have been reduced to almost zero without the economy.
举一反三
- All of us would have enjoyed the party much more if there____ quite such a crowd of people there. A: A. weren’t B. hasn’t been C. hadn’t been D. wouldn’t have been B: hasn’t been C: hadn’t been D: wouldn’t have been
- They ______ on the program for almost one week before I joined them. A: had been working B: bad worked C: have been working D: have worked
- Monetary policy affects interest rates but has little effect on inflation or business cycles.
- This is so difficult a problem that the scientist is known to ______ on it for about ten years, but hasn't found an answer yet. A: have worked B: have been working C: be working D: work on
- You can't use the machine because it hasn't been _____(test) yet.