Where did you get this book—I picked it up from a second-hand bookshop if you______ know

Sandy, _______ apple on the table is for you. Remember to eat it.—Thanks, I will. _____ apple a day keeps the doctor away.

Only by _______ your attention _______ what you are learning can you learn it well.

I onmy report next week so I won’t be able to meet you any day

The swimming pool is 80 meters_____ and 40 meters _______.