--What are Mexicans supposed to do when they meet ______ the first time?--They are supposed to shake hands.
I became a teacher ten years ______. I have been a teacher _______ 2008.
_______ nice time the Smiths had in China!
—I________ you for a long time. --Oh, I_______ in Beijing. I’ve just come back.
—I’m glad to see that the government has______ the open space _____a public library. —Me, too. We can do some reading there.
— The world is becoming smaller and smaller because of the Internet. --____________.