3)correct---I don't need to know the exact number of people coming to the meeting . just give me a ballpark figure. (an approximate number)4)correct----the teacher realized there were only four more weeks of . "we're in the home stretch ,kids!"(near the end)5)correct---- he didn't want to loss his presentation ,so he decided to cover all the bases .he savedthe file in the cloud ,copled it to his flash drive ,emailed it to himself ,and saved it to his desktop.haha .that must be some great presentation!(make sure there are no problems by preparing for every possibility)