He concluded his speech with a remark that failure ____the mother of success.
B
【句意】本期设计联络会将持续十天才会结束。
【难点】bythetime意指nolaterthanthemomentthatsomethinghappens，常与过去完成时和将来完成时连用。
ProjectHopeisanorganization_____raisesmoneytobuildschoolsandbuybooksforpoorchildren.
—Icametoyourofficeyesterdaymorning,butnobodywasin.
—Oh,we__________ameetinginthemeetingroom.
____Thewaterleftinthekettle,thedoctorputseveralthingsheunwrappedfromahandkerchief.