---What does Tu Youyou do? ---She has ___________ a scientist for over thirty years. A. played for B. worked as C. stayed with
--- ________ your phone number? --- It’s 8766-7895.
---What color ________ your bikes? ---____brown.
This is my book. ________ that is your book.
--- Is it your watch ? --- No, it’s ________.
---________ Lucy and Lily? --- In the room.