What’s wrong _____the bike?[ ]
_____ April 14, many people in Yu Shu lost their lives _____ the earthquake. [ ]
Look at that girl! Is it Susan?—No, it _______ be her. She has gone back to her hometown.
Who’s singing in the next room? Is it Lucy?—Itbe her. She has gone to New York.
It was __________________ back home from work.