1 . —Hello, John. How are you feeling now? I hear you've been ill.
—They ________ me with my twin brother Rod. He's been sick all week, but I've never felt better in my life.

A．must confuse	B．may can
C．could have confused	D．must have confused

2 . Hu Jin should ________ ________ ________ ________（本应该守信用），but she didn’t turn up and Li Fang was alone with his roses and chocolates, like a fool.(根据汉语提示完成句子)