It’s ten years since the scientist （）on his life’s work of discovering the valuable chemical.
A: made for
B: set out
C: took off
D: turned up
A: made for
B: set out
C: took off
D: turned up
举一反三
- It would have taken hours to work the sum out, so he（）his pocket calculator. A: turned out B: turned to C: turned up D: turned off
- It _____ that he was George’s father. A: turn up B: turned out C: turned on D: turned off
- Bill, wanting to be independent, ______ his father"s offer of help. A: turned down B: turned on C: turned off D: turned up
- Yao Ming is very famous now. However ,his basketball career ____ only after many years of hard work. A: took on B: took off C: took up D: took out
- During ________ this famous scientist found the ways of discovering the new chemical element. A: the later 1920’s B: the late 1920s C: later 1920’s D: late 1920s