Can you think of some cases________drivers obviously knew the traffic rules but didn't obey them?
—How about the party ______ at Mary’s house?—Wonderful! Everyone had a good time.
This is the best way ______ I have thought of ______ the problem.
Particular attention must be paid ______ welfare, especially in the poor area.
At this time tomorrow ______ over the Atlantic.
—That must have been a lot of work.—Yeah, it us three days to finish it.