1. I like playing _____ piano, but she likes playing ____ tennis.
—When can you finish your work?—I need ______ two hours to finish it.
—Hi, Bob! _____we go for a trip tomorrow?—Good idea! That sounds fun.
My son will join in the football game, I will go to _____ him on.
—_______do you go skating ?—Twice a week.
Kate spends an hour ______ swimming every week.