Mary used to listen to music thatthe0ld times.

To enjoy the scenery, Irene would rather spend long hours on the train _____ travel by air

The news he will come back made us _______.—Come on. We must finish the work and don’t _______.

ou go by train, please see to it_______ you takean express, _______ that stops only at big stations.

To take exercise indoors is less ________ than in the open air.[ ]