You’re_____your time trying to persuade him. He’ll never join us.
Will you show me the photo of your family?— OK. I’llit here next week.
Can you please tell me something about life in the future?—Oh, maybe in the future, people will _______ by robots.
Frank looks very worried today. There must be ________ wrong with him.
I don’t know _______.Can you tell me________?