In your life, sometimes you might end up back_________ you started.
26. How long do you think ________ the computer company brings out a new product?
25.He left for lunch________ the clock_________ twelve.
24. The boy the teachers considered _____ was caught ______ in the exam, which surprised us very much.
22.If you keep practising your son in football, he________ to make a famous player.
21. —What did you think of _____ president?—I didn’t care for him at first, but after ______ time I got to like him.