We looked at each other ___ surprise when we heard abird singing ” Happy birthday to you” .[ ]

Are you ready _____ the exam?[ ]

_________is from Shanghai to Beijing?-About 400 kilometers.[ ]

Let’s go to the Tian’anmen Square by taxi. –Oh, it’s not far from here. We_______ take a taxi.

There was _______terrible earthquake in 2011 in Japan! It killed _______ people.