_______ of the land in the district _____ covered with trees and grass.
Fully _____ in looking after three children at home, she no longer has time to enjoy various activities in the club.
The next day, the group of villagers had not gone very far ____ they entered a very narrow passage between two mountains.
—I can’t find Mr. Smith. Where did you meet him this morning? —It was in the hotel ___ he stayed.
—Are you free after school? —Sorry, I’ve planned to treat a friend of mine to dinner ______ for help.
---How did your students express their thanks to you on Teachers’ Day? ---A gift together with many flowers _______ sent to me.