题目内容：
Repeateduseofum,ah,like,youknowandsomeotheruselessnoisescandriveanaudiencecrazy.Itmakesthespeakersounduncertainandunprepared,anditcanleavelistenerssoannoyedthattheycan’tpayattention.RecentlyIattendedaspeechthatwasmarkedbysomanyumsthataudiencememberswererollingtheireyes.Wasanybodygraspingtheintendedmessage?Um,probablynot._______________________Manyspeakersfinishuptheirspeecheswithquestion-and-answer(Q&A)sessions,butsomelettheQ&Agoonwithoutaclearend.Theaudienceisoftenleftconfusedaboutwhetherthemeetingisoverandwhentheycangetupandleave.Doyourlistenersafavourbysettingatimelimitonquestions,andcloseyourspeechwithaspecificsignal—evenifit’ssomethingsimplelike,“Ifyouhaveanymorequestions,youknowwheretoreachme.”
Orevenmoretothepoint,concludeyourspeechwith“Thanksforyourtime.”
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