if i take a bus ,it will be cheaper.
but if you go by taxi,you will get there more quickly.
but i think i will take a train.it's neither too dear nor too slow.
perhaps.if i am goinging out,i'll close the window and the door.
if you are hungry,you can have something to eat.i will be back this evening if the meeting ends early.
mom.if you don't go quickly,you'll miss the train.