It’s difficult ______me to afford the car. And It’s generous ______you to help me.
Mr. Black isn’t here. He ________ to Chongqing.
Let’s go to Nanchan Temple,__________?
——How long have you worked here? ——__________________.
Peter ________ to help our math teacher carry books yesterday.
——What’s your mother? ——She_________ a teacher, but now she is a doctor.