Lucy and her friend____at the airport in half an hour.They a

Lucy and her friend____at the airport in half an hour.They a Lucy has been in the phone for half an hour. they will go back () A after half an hour B in half an hour it is impossible ( )her ( )the work in half an hour an hour and half还是an hour and a half my plane will__in an hour.I must get to the airport in half It takes him half an hour to get to the airport.（对half an ho they walked for.A,an hour B.half a hour C,half an hour 选哪个 Lucy will finish writing an email in half an hour.(对in half The train_____ (arrive) in half an hour they will come here in half an hour.(对in half an hour提问) lucy went out an hour ago.she will be back in half an hour.