Professor Johnson is said _____ some significant advance in his research in the past years.
A、havingmadeC
暂无解析
Josephwasverylucky（）withhislife;healmostdidnotgetoutoftheroom.
_____,hecannowonlywatchitonTVathome.
Thereareonlytenapplesleftinthebaskets,_____thespoiltones.
_____ your timely advice,I would never have known how to go about the work.
Underthis____pressuresomeoftherocksevenbecameliquid.
