2d Role-play the conversation.
Mary：What were you doing last night, Linda? I called at seven and you didn’t pick up.
Linda：Oh, I was in the kitchen helping my mom.
Mary：I see. I called again at eight and you didn’t answer then either.
Linda：What was I doing at eight? Oh, I know. When you called, I was taking a shower.
Mary：But then I called again at nine.
Linda：Oh, I was sleeping at that time.
Mary：So early? That’s strange.
Linda：Yeah, I was tired. Why did you call so many times?
Mary：I needed help with my homework. So while you were sleeping, I called Jenny and she helped me.