______books aren’t old.______ are new.
Today’s young people can’t live without smart phones. They keep their hands on the phones whenever they go, even while they_______meals.
Think it over, _____ you’ll work out the math problem.
—Excuse me, sir. Here’s a package for Lin Tao. Which room does he live in? —————.
—Mum, I’ve heard that we can’t eat ____ these days. Is it true? —Take it easy. It is safe to eat cooked meat.
Boys, don’t lose____ in playing Angry Birds. It is bad for your eyes to play computer games for a long time.