According to the speaker, what is Bethany MacKay scheduled to do in the afternoon？A．Pose f

According to the speaker, what is the feature of air pollutants？A．Its contents often remai

According to the guest speaker, what is the best way of recruiting the right staff？A．It de

According to the speaker, what is an advantage of the change？A．Improve the quality of work

According to the speaker,in what places are those large fairs held？A．In shopping centers o

According to the speaker, what is the disadvantage of sitting on the lawn？A．The lawn is no

According to the speaker, what should we do to prevent a population explosion？A．To take ac