—The contest is so easy, but you fail to pass it．—I’m sorry it ______ be this way．

— How’s your tour around the North Lake? Is it beautiful? — It ______ be, but it is now heavily polluted. 

Our English teacher recommended that we ________ an English dictionary.

—Did you attend the opening ceremony of The Voice of China last week? —Sorry! We ________ it, but we had a terrible traffic accident on our way.

— Is John coming by train ? — He should, but he ______ not. He likes driving his car.