--- I will come to your lecture at 10:00 am. tomorrow. --- I’m sorry. By then my lecture ______ and I ______ my guests in my office.

By the end of the last month, I_________all the CDs Of Justin Bieber.

 I’ve won a holiday for two to Florida. I ＿＿ my mum.

The wide spread of super hybrid rice around the world ______ the lives of millions and millions of people suffering from hunger to a great level.

 I can't understand why he ________ so selfish. He isn't usually like that.