The field research will take Luffy and Steven about two weeks; it will be a long time _______ we _______ again.
Running a company is not ______ a matter of hiring people — they also need to be trained.
Everything was perfect for the picnic ______ the weather.
Don’t promise anything ______ you are one hundred percent sure.
Dogs have a very good ______ of smell and are often used to search for survivors in an earthquake.
American Indian ______ about five percent of the U.S. population.