1、 These are my shirts. It's mine.
(A 、These) (B are) (c It's) (D mine)
2. That's a jacket. It's brown jacket.
(A That's) (B a jacket) (c It's) (D brown jacket)
3. Are everyone here now?----No,Jim and Tom aren't here.
(A Are ) (B here) (c now) (D aren't )