Recently, to maintain national balance, the Chinese government has _____ a policy of encouraging college graduates to take positions in rural areas.

Will people live to be 300 years old —_______. But maybe people can live to be 200 years old.

d you mind telling her the news” “_____, but I don’t know if I_____ her these days”

I seem to be lost. Could you tell me _____—Sure. You can take the No.3 bus to get there.

Here are three balls, ___?