Поставить в правильном времени ! he (not/get on) the train because he left his ticket at home. she (never/fly) by plane. i (work) at this airport since last winter. they (wait) for their train at the moment. usually we (travel) by train but today we (fly) by plane. we (arrive) at the station in ten minutes. when you (book) your ticket? what you (do) when it happened? if my aunt (not/be) busy next weekend, she (visit) us. he (travel) on business once a month.