Good morning. I’ve got an appointment with MrSmith in his office. —Morning.You ________ be Mr Jones. This way, please.

the Dome, ________ 103-minute documentary released by Chai Jing, has pushed public awareness about air pollution and encouraged people to join in efforts to make ________difference.

is known to us all is that America is a developed country _________the First World.

I always feel a little nervous when I talk to the headmaster.— ______ . She is strict, but she’s also kind to her students.

Oh! I can’t see the blackboard clearly.—There may be _______ with your eyes.