Ten years ago the population of our village was_________ that of theirs.

Don’t play with the knife, ______ you’ll cut your hand. —-Sorry, I ______ .

Would you come back to have dinner with us this evening — I’d love to, ______ I have an important meeting .

Before the 2008 Olympic Games took place， _________ the young _________ the old took anactive part in learning English in Beijing.

It was not until midnight ____ we got home because of traffic jams.[ ]