The time and effort he has devoted during the past few years____ trees in that remote area is now considered to be of great value.
Not until Jane got off the bus did she find her wallet______.
The classroom is so dirty that it needs________ badly.
Americans eat____ vegetables per person today as they did in 1990.
Everybody, men and women, old and young, _____ sports and games.
I had forgotten the date of that important battle so I _____ a history book.