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