Wemust______thattheexperimentiscontrolledasrigidlyaspossible.
A、assureThewealthofacountryshouldbemeasured________thehealthandhappinessofitspeopleaswellasthematerialgoodsitcanproduce.
WeweretoldthatSuewouldbeidealforthejob,butshe________badlywhenwetalkedtoher.
Idon'tknowhowwecanmake________onthetimetableforanymorecourses.
Weregretto________thatitmaynotbepossibletodealwitheveryrequest.
Theterriblenoiseis______memad.
