Theassociationis________toraisingfundstohelptheblind.
A、conductedWeregretto________thatitmaynotbepossibletodealwitheveryrequest.
Wemust______thattheexperimentiscontrolledasrigidlyaspossible.
Thewealthofacountryshouldbemeasured________thehealthandhappinessofitspeopleaswellasthematerialgoodsitcanproduce.
Theboyranoutoftheclassroomwithouttheteacher's_______.
Sorrysir,wedon'thavewineorbeer.Weareonlylicensedtosell_______drinks.
