Duetopopulardemandbythestaffmembers,thescheduledtalkbyMr.Smithwilltakeplace_____Room15insteadofRoom20aswasfirstplanned.
A.in B.on C.of D.as正确答案A
Duetopopulardemandbythestaffmembers,thescheduledtalkbyMr.Smithwilltakeplace_____Room15insteadofRoom20aswasfirstplanned.
A.in B.on C.of D.as正确答案A