The time and effort he has devoted during the past few years _____ trees in that village are now considered to be very important.
1 feel that one of my main duties ______ a teacher is to help the students to become better learners.
It was a pity that the great writer died _________his works unfinished.
In order to change attitudes _______ employing women, the government is bringing in new laws.
--The room is so dirty.____ we clean it? ---Of course.
The Chinese is _____brave and hardworking people .