They are talking so warmly and it looks _________ they had been old friends.
________ that China has the largest population in the world.
In the reading room, we found her ________ at a desk, with her attention ________ on a book.seating; fixing B. seated; fixed C. sitting; fixing D. to sit; fixed
--They were ________ busy ________ with each other ________ the time. --- How cool the guys are !
---Do you mind my sharing your e-dictionary, Sandy?---________________.
---Could you tell me ________? ---Yes. They ________ to the museum.