Chinese and Russian scientists have reported that in places ( ) stress is building up, the radon levels of the water build up too.
举一反三
- They have a good reputation. A: build up B: built up C: been built up D: building up
- In our fast-paced world, it is almost impossible to avoid ____ tension from stress. A: to build up B: building up C: to have built up D: having built up
- They __________ a good reputation. A: have built up B: has built up C: builds up D: have build up
- Our manufacturing costs have gone（ ）much. A: up to B: to up C: up too D: too up
- So I _______ the confidence that I could compete at North Caroline. A: had built up B: have built up C: have built uphave build up D: had build up