Not until I began to work ____ how much time I had wasted.
Washington, a state in the United States, was named _____ one of the greatest American president.
Was it______ Mike’s careless ____ your keys were lost?
. --- It remains to be seen _____ the plan can be carried out. --- It is up to you.
. Our residential district is a newly-built one, so there isn’t much around here _____ entertainment. A. in the matter of B in the event of C. on behalf of D. on account of
The teacher stressed again that the students should not ____ any important details while retelling the story.