Thosewhochangemobilephonestoofrequentlywillhavetopayforbeing______.
肺炎患儿的护理措施是（）
Thenewdiscovery_______beofgreatservicetomankind.
______wecanhopeforistoavoidcompletefailureinthecominggamewiththatstrongteam.
Iftheoperation________carefullyprepared,itwouldnothavebeensuccessful.
