Ted: Hey, Tina. Where were you at ten this morning? I called you but you didn’t answer my phone.
Tina: Sorry, Ted. I   11   when you called.
Ted: You were still sleeping at that time?   12  
Tina: No, I went to bed very early. I got up at five thirty this morning and went to the market with my
mother. We stayed there for three hours. I was very tired, so I went to bed again after shopping.
Ted: You went shopping at the market for three hours. Why did it take you so long?
Tina: Well, my mother met some friends in the market, and they had so many things to talk about.
Ted:   13  
Tina: I was standing there and listening to them.
Ted: Good for you.

【題組】11.
(A) sleep
(B) am sleeping
(C) slept
(D) was sleeping