500
Every morning passengers ___________ in line to board the train. The train usually _____________ at 8 am. But it is now 8:30 am and the passengers _______________(wait) for the train. Because the train has not come yet, and they ___________ impatient.
Every morning passengers ____wait___ in line to board the train. The train usually ______arrives____ at 8 am. But it is now 8:30 am and the passengers ____are still waiting_________for the train. Because the train has not come yet, and they ___are getting____ impatient.