In those days, we had no phones, so we have to keep in touch _________ writing often.
English _____ all around the world.
Middle school students can _____ a lot from the Chinese-Engli sh dictionary.
You will be late for school _____ you don’t hurry.
His car _____now, so he has to go to work on foot.
---Tom, _____we go home together this afternoon ? ---Ok !