Completar Frases Fill in the gapsVersión en línea Fill in the gaps and check your grammar por Irina 1 riding am is flying I driving a car and my brother is a bike . 2 sails is waiting are do Her mum is for the bus and her dad flying a helicopter . 3 he they we Are Is they riding a scooter ? - Yes , are . 4 am going not flies do My friends are sailing a boat , they are to London by train . 5 is are am I not jumping on a train .