This is only a solution that can be adopted to solve the problem , so you have to find a better way.
He left his homeland, _________ never _________ back again.
– What did he want to know, Jack?- ________ that we would have the picnic on Sunday.
________ 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 !