I _______ use a clock to wake me up because at six o’clock every morning the train comes by my house.
Not until the teacher explained the importance of getting up early ______ we promise to come early.
—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.
Great attention must be paid ______ welfare, especially in the poor area.
At this time tomorrow ______ over the Atlantic.