The university is saving $ 300,000 per year by its energy ______ efforts.
| A．consumption | B．conservation |
| C．suspension | D．prohibition |
Onceadecisionhasbeenmade,allofusshould______it.
| A．directto | B．stickto | C．leadto | D．referto |
Beforethewarbrokeout,manypeople________insafeplacespossessionstheycouldnottakewiththem.
| A．threwaway | B．putaway | C．gaveaway | D．carriedaway |
It’stenyearssincethescientist________onhislife’sworkofdiscoveringthevaluablechemical.
| A．madefor | B．tookoff | C．setout | D．turnedup |
Tokeephealthy,ProfessorJohnson_______cyclingasregularformofexerciseafterheretired.
| A．tookup | B．caughton | C．carriedon | D．madefor |
Helenalwayshelpshermothereventhoughgoingtoschool______mostof
herday.
| A．savesup | B．makesup | C．takesup | D．putsup |