—Whose model plane is it?—It’s Jack’s. He made it by _______.
. The ________ is about $ 20 per person.
The boy has poor eyesight because he plays __ computer games.
.----- does she usually go to the Reading Club?------ Twice a week.
Peter is busy at school,but he never forgets exercise everyday.
Leo’s parents plan_________ him ______the south next week.