--May I help you with some jeans, sir? -- Yes, I’d like to try on those blue ________.

We have only one Earth. It’s our common _.

—Excuse me, what’s your last name?—Black.

—My favorite TV _______ is A Bite of Chinese (舌尖上的中国). —We like it, too. My mother often cooks delicious food after watching it. 

There are _____ in the room.